Whitney Houston dies.
Whitney Houston sings "That's What Friends Are For" with Dionne Warwick at Clive Davis' pre-Grammy party in 2011. (Gina Ferazzi, Los Angeles Times / February 12, 2010)
Whitney Houston, a willowy church singer with a towering voice who became a titan of the pop charts in the 1980s and 1990s but then saw much of her success crumble away amid the fumes of addiction and reckless ego, has died. She was 48.

Kristen Foster, a publicist, announced Saturday that the singer had died, and police sources later confirmed that she was found unresponsive in her room at the Beverly Hilton Hotel about 3:30 p.m. Paramedics performed CPR on her, but she was pronounced dead about 4 p.m., Beverly Hills Police Lt. Mark Rosen told KTLA News. An investigation into the cause of death is pending.

On Thursday afternoon at the hotel, Houston drew the attention of reporters and security staff with her erratic behavior, dripping sweat and disheveled clothes. The singer was disruptive at that day's rehearsals for music mogul Clive Davis' annual Grammy industry party and showcase; that party at the Hilton on Saturday night was supposed to include a performance by Houston.

Late Saturday, Davis told those assembled at the party that he had a "heavy heart" and was "personally devastated" by Houston's death, but "simply put, Whitney would have wanted the music to go on, and her family has asked for us to carry on."

The star's professional decline had become a familiar part of her public saga. Her haggard appearance at times shocked fans who had once been drawn to the singer's world-class smile and approachable glamour in music videos, album covers, concerts and, later, hit films. Songs like "I Will Always Love You" and "Saving All My Love for You" had women around the world singing along with the star, but by the end of the 1990s they barely recognized her.

As Houston's public persona veered into something darker and more volatile, many fans pointed to her relationship withBobby Brown as the axis on which her life seemed to be spinning so madly. She acknowledged that she was immersed in drugs, and the toll on her voice and her appearance was difficult to watch.

"The biggest devil is me," the singer told ABC's Diane Sawyer in a notorious 2002 interview. "I'm either my best friend or my worst enemy."

Brown was at Houston's side as she said that. Their 14-year marriage, invariably described as tumultuous, was tarnished by drug abuse, Brown's run-ins with the law and allegations of domestic abuse. It became fodder for the tabloids and entertainment shows and for a year was on display in the reality show "Being Bobby Brown."

The two superstar singers met at the 1989 Soul Train Music Awards and married three years later. To some, it seemed an odd match, the glamorous pop star and the onetime New Edition bad boy. "When you love, you love. I mean, do you stop loving somebody because you have different images? You know, Bobby and I basically come from the same place," she explained to Rolling Stone. "I am not always in a sequined gown. I am nobody's angel. I can get down and dirty. I can get raunchy."

Houston divorced Brown in 2007, winning custody of their daughter, Bobbi Kristina Brown. At the court session in Orange County, Houston testified that her daughter could not depend on her father. "He's unreliable," Houston said, according to the Associated Press. "If he says he's going to come, sometimes he does. Usually he doesn't."

In his autobiography, Brown wrote that their marriage "was doomed from the very beginning," saying that they separated in the first year and several times in the years after. He said he believed she had married him "to clean up her image." Brown also admitted he was not faithful to Houston.

Whitney Elizabeth Houston was born Aug. 9, 1963, in Newark, N.J., and powerful female voices and the sound of choirs were in her ears before she could walk or talk. Cissy Houston, her mother, was a gospel singer and back-up singer who worked with the likes of Otis Redding, Wilson Pickett and Dusty Springfield. Aretha Franklin was the youngster's godmother, and Dionne Warwick and Dee Dee Warwick were her cousins. There was little doubt that young Whitney would follow their career paths.

In her family's basement — which was Madison Square Garden in her imagination — she would belt out "Respect" and bask in the applause that she might have considered her birthright. By high school she was singing back-up for Chaka Khan and Lou Rawls and had also embarked on a modeling career that put her in the glossy spreads of Seventeen and Glamour magazines.

At a showcase in Sweetwaters supper club in Manhattan — she could sing at 19 but wasn't old enough to buy a drink — she was spotted by Davis, the music mogul who has become legendary for his ear and his success in guiding the early careers of Rod StewartCarlos SantanaBarry ManilowAlicia Keysand Kelly Clarkson. Davis saw in Houston a rare bundle of raw talent, beauty and pedigree. He spent two years and $250,000 to prepare and package her before releasing her 1985 debut album, "Whitney Houston," which would became a mega-seller.

"Whitney Houston" became the first album by a new female artist to yield three No. 1 singles: "Saving All My Love for You," "How Will I Know" and "The Greatest Love of All." Critics moaned that the material was too flimsy for such a prodigious instrument, but Houston reveled in the success. She became a major crossover star and, with her church background and relatively wholesome aura, she was the rare female recording star who was young and attractive but not overtly sexualized on stage and on screen.

Houston's follow-up album, "Whitney," in the summer of 1987, delivered hit after hit with "I Wanna Dance With Somebody (Who Loves Me)," "Didn't We Almost Have It All," "So Emotional," and "Where Do Broken Hearts Go." For her career, her sales totals would become dizzying: By some accounting, she sold more than 170 million albums, singles and videos in the pre-digital marketplace.

Houston's stirring rendition of "The Star-Spangled Banner" at the 1991 Super Bowl became a signature as well and a massive fundraiser for the American Red Cross. More than sales units, Houston had stepped to the center of pop culture in a way that would make her a powerful influence on several generations of singers, especially Mariah CareyChristina Aguilera, Alicia Keys, Queen Latifah and Jennifer Hudson.

Carey, one of the few female stars of Houston's era who was on a competitive commercial footing, said Saturday she was reeling from the news.

"Heartbroken and in tears over the shocking death of my friend, the incomparable Ms. Whitney Houston," Carey said. "My heartfelt condolences to Whitney's family and to all her millions of fans throughout the world. She will never be forgotten as one of the greatest voices to ever grace the earth."