Singer Whitney Houston performs onstage

Singer Whitney Houston performs onstage during the 2011 Pre-Grammy Gala & Salute to Industry Icons, with Clive Davis Honoring David Geffen at the Beverly Hilton on February 12, 2011. The event, on the eve of the 53rd Annual GRAMMY, honored Geffen Records founder and DreamWorks SKG co-founder David Geffen who was presented with the President's Merit Award in recognition of his significant contributions to the music industry and the impact his efforts have had on music and the business of music. (Credit: MARK RALSTON/AFP/Getty Images)

Clive Davis And The Recording Academy's 2011 Pre-GRAMMY Gala And Salute To Industry Icons Honoring David Geffen - Inside

Whitney Houston attends the 2011 Pre-GRAMMY Gala and Salute To Industry Icons Honoring David Geffen at Beverly Hilton on February 12, 2011 in Beverly Hills, California. (Credit: Larry Busacca /Getty Images)

2011 Pre-GRAMMY Gala And Salute To Industry Icons Honoring David Geffen - Show

Whitney Houston arrives at the 2011 Pre-GRAMMY Gala and Salute To Industry Icons Honoring David Geffen at Beverly Hilton on February 12, 2011 in Beverly Hills, California. (Credit: MARK RALSTON/Getty Images)

Singer Whitney Houston performs onstage

Singer Whitney Houston performs onstage during the 2011 Pre-Grammy Gala & Salute to Industry Icons, with Clive Davis Honoring David Geffen at the Beverly Hilton on February 12, 2011. The event, on the eve of the 53rd Annual GRAMMY, honored Geffen Records founder and DreamWorks SKG co-founder David Geffen who was presented with the President's Merit Award in recognition of his significant contributions to the music industry and the impact his efforts have had on music and the business of music. (Credit: MARK RALSTON/AFP/Getty Images)

2011 Pre-GRAMMY Gala & Salute To Industry Icons Honoring David Geffen - Show

Whitney Houston arrives at the 2011 Pre-GRAMMY Gala and Salute To Industry Icons Honoring David Geffen at Beverly Hilton on February 12, 2011 in Beverly Hills, California. (Credit: MARK RALSTON /Getty Images)

2011 Pre-GRAMMY Gala And Salute To Industry Icons Honoring David Geffen - Arrivals

Whitney Houston arrives at the 2011 Pre-GRAMMY Gala and Salute To Industry Icons Honoring David Geffen at Beverly Hilton on February 12, 2011 in Beverly Hills, California. (Credit: MARK RALSTON/Getty Images)

2011 Pre-GRAMMY Gala And Salute To Industry Icons Honoring David Geffen - Arrivals

Whitney Houston arrives at the 2011 Pre-GRAMMY Gala and Salute To Industry Icons Honoring David Geffen at Beverly Hilton on February 12, 2011 in Beverly Hills, California. (Credit: MARK RALSTON/Getty Images)

Clive Davis And The Recording Academy's 2011 Pre-GRAMMY Gala And Salute To Industry Icons Honoring David Geffen - Inside

Whitney Houston arrives at the 2011 Pre-GRAMMY Gala and Salute To Industry Icons Honoring David Geffen at Beverly Hilton on February 12, 2011 in Beverly Hills, California. (Credit: Larry Busacca /Getty Images)

2010 Keep A Child Alive's Black Ball

Whitney Houston at the 2010 Keep A Child Alive's Black Ball at the Hammerstein Ballroom on September 30, 2010 in New York City. (Credit: Stephen Lovekin /Getty Images)

Whitney Houston In Concert

BERLIN - MAY 12: US-American singer Whitney Houston performs live during a concert at the O2 World on May 12, 2010 in Berlin, Germany. The concert is part of the 2010 Nothing But Love tour to promote the album I Look To You. (Photo by Jakubaszek/Getty Images)

Whitney Houston In Concert

BERLIN - MAY 12: US-American singer Whitney Houston performs live during a concert at the O2 World on May 12, 2010 in Berlin, Germany. The concert is part of the 2010 Nothing But Love tour to promote the album I Look To You. (Photo by Jakubaszek/Getty Images)

Whitney Houston In Concert

BERLIN - MAY 12: US-American singer Whitney Houston performs live during a concert at the O2 World on May 12, 2010 in Berlin, Germany. The concert is part of the 2010 Nothing But Love tour to promote the album I Look To You. (Photo by Jakubaszek/Getty Images)

Whitney Houston In Concert

BERLIN - MAY 12: US-American singer Whitney Houston performs live during a concert at the O2 World on May 12, 2010 in Berlin, Germany. The concert is part of the 2010 Nothing But Love tour to promote the album I Look To You. (Photo by Jakubaszek/Getty Images)

Whitney Houston Performs In Milan

(Credit: Vittorio Zunino Celotto /Getty Images)

2010 BET Honors - Show

WASHINGTON - JANUARY 16: Whitney Houston accepts the BET Honor for entertainment during the 2010 BET Honors at the Warner Theatre on January 16, 2010 in Washington, DC. (Photo by Kris Connor/Getty Images)

2009 American Music Awards - Show

Whitney Houston onstage at the 2009 American Music Awards at Nokia Theatre L.A. Live on November 22, 2009 in Los Angeles, California. (Credit:Kevork Djansezian/ Getty Images)

2009 American Music Awards - Show

Whitney Houston onstage at the 2009 American Music Awards at Nokia Theatre L.A. Live on November 22, 2009 in Los Angeles, California. (Credit:Kevork Djansezian / Getty Images)

Wetten dass...? New Season With Michelle Hunziker And Thomas Gottschalk

Whitney Houston attends the Wetten dass...? show at the Messe Freiburg on October 3, 2009 in Freiburg, Germany. (Credit: Getty Images)

US singer Whitney Houston performs

US singer Whitney Houston performs on stage during the 183rd edition of the TV show presented by "Wetten, dass..?" (Let's Make a Bet) on October 3, 2009 in Freiburg, southern Germany. (Credit: JOERG KOCH/AFP/Getty Images)

Whitney Houston Performs on ABC's "Good Morning America"

Whitney Houston performs on ABC's "Good Morning America" on September 1, 2009 in New York City. (Credit:Larry Busacca / Getty Images)

51st Annual Grammy Awards - Show

Whitney Houston speaks during the 51st Annual Grammy Awards held at the Staples Center on February 8, 2009 in Los Angeles, California. (Credit: Kevin Winter /Getty Images)

51st Annual Grammy Awards - Show

Whitney Houston speaks during the 51st Annual Grammy Awards held at the Staples Center on February 8, 2009 in Los Angeles, California. (Credit:Kevin Winter / Getty Images)

2009 GRAMMY Salute To Industry Icons: Clive Davis - Show

Whitney Houston performs at the 2009 GRAMMY Salute To Industry Icons honoring Clive Davis at the Beverly Hilton Hotel on February 7, 2009 in Beverly Hills, California. (Credit: Kevin Winter /Getty Images)

2009 GRAMMY Salute To Industry Icons: Clive Davis - Show

Whitney Houston performs at the 2009 GRAMMY Salute To Industry Icons honoring Clive Davis at the Beverly Hilton Hotel on February 7, 2009 in Beverly Hills, California. (Credit: Kevin Winter /Getty Images)

US singer Whitney Houston performs on Ma

US singer Whitney Houston performs on May 24 , 2008 in Rabat during the closing concert in the Mawazine 7th festival held in Rabat. (Credit: ABDELHAK SENNA/AFP/Getty Images)

US singer Whitney Houston performs on Ma

US singer Whitney Houston performs on May 24 , 2008 in Rabat during the closing concert in the Mawazine 7th festival held in Rabat. (Credit: ABDELHAK SENNA/AFP/Getty Images)

Whitney Houston and Ray Jay

(Credit: Getty Images)

Clive Davis Pre-GRAMMY Party - Arrivals

Whitney Houston arrives at the Legendary Clive Davis Pre-Grammy Party held at the Beverly Hilton Hotel on February 9, 2008 in Beverly Hills, California. (Credit: Vince Bucci /Getty Images)

Clive Davis Pre-GRAMMY Party - Arrivals

Whitney Houston arrives at the Legendary Clive Davis Pre-Grammy Party held at the Beverly Hilton Hotel on February 9, 2008 in Beverly Hills, California. (Credit: Vince Bucci /Getty Images)

17th Mercedes-Benz Carousel of Hope Ball - Arrivals

BEVERLY HILLS, CA - OCTOBER 28: Singer Whitney Houston arrives at the 17th Annual Mercedes-Benz Carousel of Hope Ball at the Beverly Hilton Hotel on October 28, 2006 in Beverly Hills, California. (Photo by Michael Buckner/Getty Images)

15th Annual ELLA Award - Arrivals

BEVERLY HILLS - SEPTEMBER 12: Recording artist Whitney Houston attends the15th Annual Ella Awards at the Beverly Hilton Hotel on September12, 2006 in Beverly Hills, California. (Photo by Frederick M. Brown/GettyImages)

The Fifthteen Annual Ella Awards

BEVERLY HILLS - SEPTEMBER 12: (L-R) Recording artists Dionne Warwick, Whitney Houston pose for photographers during the15th Annual Ella Awards at the Beverly Hilton Hotel on September12, 2006 in Beverly Hills, California. (Photo by Frederick M. Brown/GettyImages).

This 26 March 2001 file photo shows US pop diva Wh

LOS ANGELES, CA - MARCH 26: This 26 March 2001 file photo shows US pop diva Whitney Houston and her husband Bobby Brown arriving at the Vanity Fair Oscar Party in Los Angeles, California. Houston has checked into a drug rehabilitation clinic, her publicist said 16 March 2004, providing a new twist in her long battle with drug addiction. Houston, 40, has "chosen to enter a facility for rehabilitation," her publicist said in a terse statement that provided no further details of the type or location of the treatment, but which contained a message for her fans. "She thanks everyone for their support and prayers," the statement said. (Credit: FREDERICK M. BROWN/AFP/Getty Images)

U.S. singer Whitney Houston performs at the MTV Eu

BARCELONA, SPAIN - NOVEMBER 14: U.S. singer Whitney Houston performs at the MTV European Music Awards in Barcelona's Sant Jordi stadium, Spain Thursday Nov. 14, 2002. AFP AP Photo/POOL, Denis Doyle (Credit: DENIS DOYLE/AFP/Getty Images)

World Music Awards 2004 - Show

LAS VEGAS, NEVADA : SEPTEMBER 15: Whitney Houston performs on stage at the 2004 World Music Awards at the Thomas & Mack Centre on September 15, 2004 in Las Vegas. (Photo by Jo Hale/Getty Images)

World Music Awards 2004 - Show

LAS VEGAS, NV ? SEPTEMBER 15: Singer Whitney Houston is seen performing on stage during the 2004 World Music Awards at the Thomas and Mack Center on September 15, 2004 in Las Vegas, Nevada. (Photo by Kevin Winter/Getty Images)

World Music Awards 2004 - Show

LAS VEGAS, NV ? SEPTEMBER 15: Singer Whitney Houston is seen performing on stage during the 2004 World Music Awards at the Thomas and Mack Center on September 15, 2004 in Las Vegas, Nevada. (Photo by Kevin Winter/Getty Images)

World Music Awards 2004 - Show

LAS VEGAS, NV ? SEPTEMBER 15: Singer Whitney Houston performs during the 2004 World Music Awards at the Thomas and Mack Center on September 15, 2004 in Las Vegas, Nevada. (Photo by Pascal Le Segretain/Getty Images)

The Princess Diaries 2 Royal Engagement Film Premiere

ANAHEIM, CA - AUGUST 7: Producer/recording artist Whitney Houston (C) and recording artist Bobby Brown and family attend the film premiere of "The Princess Diaries 2: Royal Engagement" at Disneyland on August 7, 2004 in Anaheim, California. The film "The Princess Diaries 2: Royal Engagement" opens in theaters nationwide on August 11, 2004. (Photo by Frederick M. Brown/Getty Images). *** Local Caption *** Whitney Houston;Bobby Brown

The Princess Diaries 2: Royal Engagement Premiere

ANAHEIM, CA - AUGUST 7: Actress/singer Whitney Houston and husband Bobby Brown arrives at The Princess Diaries 2: Royal Engagement Premiere held at Downtown Disneyland e on August 7, 2004 in Anaheim, California. (Photo by Frazer Harrison/Getty Images)

US singer Whitney Houston sends kisses p

HAMBURG, Germany: US singer Whitney Houston sends kisses prior the World Women's Award ceremony in Hamburg, northern Germany, 09 June 2004. Whitney Houston got the World Artist Award for Lifetime Achievement. The Women's World Awards are part of the global initiative "Women's World Forum" and will be presented of the first time this year to extraordinary women in 12 different categories in Hamburg. (Credit: ROLAND MAGUNIA/AFP/Getty Images)

Singer Whitney Houston of the US is film

HAMBURG, Germany: Singer Whitney Houston of the US is filmed prior to the Women's World Awards ceremony in 09 June 2004 in Hamburg. Houston was later given the World Artist Award for Lifetime Achievement. These awards have been presented of the first time this year to extraordinary women in 12 different categories. (Credit: JOCHEN LUEBKE/AFP/Getty Images)

Michael Jackson Concert - Day 1

Whitney Houston performing on the Michael Jackson "30th Anniversary Celebration, The Solo Years" concert at New York's Madison Square Garden, Friday, Sept. 7, 2001. Photo by Frank Micelotta/ImageDirect.

32nd Annual Songwriters Hall of Fame

Special guest Whitney Houston at the Songwriters Hall of Fame 32nd Annual Awards at The Sheraton New York Hotel and Towers in New York City on June 14, 2001 Photo by Scott Gries/ImageDirect

Whitney Houston Concert for Good Morning America

Whitney Houston performs three songs taped for ABC Good Morning America outside at Lincoln Center in new York City, Sunday, December 8, 2002. Photo by Frank Micelotta/ImageDirect.

VH1 Divas Las Vegas - Show

Whitney Houston and Mary J. Blige perform on the "VH1 Divas Las Vegas", a concert to benefit the VH1 Save the Music Foundation, at the MGM Grand Garden Arena in Las Vegas, 5/23/02. (Credit: Frank Micelotta/ImageDirect)

2000 MTV VIDEO MUSIC AWARDS

Whitney Houston at the 2000 MTV Video Music Awards at Radio City Music Hall in new York City, 9/7/00. (Credit: Getty Images)

US soul star Whitney Houston smiles as s

US soul star Whitney Houston smiles as she walks with her husband Bobby Brown next to the "Wailing Wall" or Western Wall in the old city of Jerusalem 28 May 2003. Houston is in Israel on a week long private visit to make a recording with the polygamous black Hebrew sect living in the southern Israeli town of Dimona. (Credit:/AFP/Getty Images)