Nov. 22, 2009: In this photo, artist Whitney Houston performs onstage at the 37th Annual American Music Awards in Los Angeles. (AP)
Nov. 22, 2009: In this photo, singer Whitney Houston receives the International Artist Award onstage at the 37th Annual American Music Awards in Los Angeles. (AP)
July 11, 1999: In this photo, singer Whitney Houston performs "Until You Come Back To Me" during the 26th annual American Music Awards at the Shrine Auditorium in Los Angeles. (AP1999)
Sept. 1, 2009: In this photo, Whitney Houston performs on "Good Morning America" in Central Park in New York. (AP2009)
Oct. 21, 1998: In this photo, former World Heavyweight Boxing Champion Muhammad Ali is greeted by singer Whitney Houston as he arrives on stage at New York's Radio City Music Hall to accept a GQ "Men of the Year" Award. (AP)
Oct. 13, 1997: In this photo, Whitney Houston looks over her shoulder as her husband Bobby Brown looks to her at the premiere of "The Wonderful World of Disney" movie "Cinderella," at Mann's Chinese Theater in the Hollywood section of Los Angeles. (AP)
May 10, 1986: In this photo, American singer Whitney Houston belts out a song during her segment of a benefit concert at Boston Garden. (AP)
March 3, 1988: In this file photo, Whitney Houston poses with her Grammy at the annual Grammy Awards presentation in New York. (AP)
Nov. 25, 2002: In this file photo, singer Whitney Houston, left, smiles at her husband, singer Bobby Brown, during a court hearing in Dekalb County State Court in Decatur, Ga. (AP)
May 22, 2003: In this photo, Whitney Houston, right, and her husband, Bobby Brown, perform during the "VH1 Divas" duets show in Las Vegas. (AP)
July 17, 1995: In this photo, Whitney Houston performs before a sellout crowd at the Rose Bowl in Pasadena, Calif., during closing ceremonies for the final match that pits Italy against Brazil in the World Cup. (AP)
Jan. 16, 2010: In this photo, Whitney Houston accepts an award at the Warner Theatre during the 2010 BET Hip Hop Honors in Washington. (AP)
Jan. 17, 2009: This photo shows singer Whitney Houston at the BET Honors in the Warner Theatre in Washington. (AP)
Feb. 13, 2011: In this photo, producer Clive Davis shares a moment with singer Whitney Houston performs at the pre-Grammy gala & salute to industry icons with Clive Davis honoring David Geffen in Beverly Hills, Calif. (AP)
July 15: 1984: In this photo, Whitney Houston, left, and Jermaine Jackson sing during a rehearsal for the CBS television soap opera "As the World Turns" in New York. (AP)