Stars react to Whitney Houston's death.

AP - A collection of reactions to Whitney Houston's death Saturday in Beverly Hills at age 48.
"First of all, I want to tell you that I love you all. Second, I would like to say, I love you Whitney. The hardest thing for me to do is to come on this stage." - Houston's ex-husband Bobby Brown, performing a show in Southaven, Miss., hours after her death.

"I am devastated by the loss of Whitney. We have lost a true angel. My prayers, my heart goes out to her family. We have lost an extraordinary voice to the world. " - singer Lionel Richie.

"Heartbroken and in tears over the shocking death of my friend, the incomparable Ms. Whitney Houston. She will never be forgotten as one of the greatest voices to ever grace the earth." - Mariah Carey, in messages posted on Twitter.

"A light has been dimmed in our music community today, and we extend our deepest condolences to her family, friends, fans and all who have been touched by her beautiful voice." - Neil Portnow, president and CEO of the Recording Academy.

"I truly, truly adored Whitney Houston. Her album 'I'm Your Baby Tonight' was the very first album I ever bought." - Michelle Williams of Destiny's Child.

"I can't believe that Whitney is gone. My heart goes out to her family, to Clive (Davis), and to everyone who knew and loved this amazingly talented and beautiful artist. I will always love her." - Barry Manilow.

"Without a doubt, her voice, for me, and for the world, was the gold standard. She had it all, she broke all barriers." - Tommy Mottola, former chairman and CEO of Sony Music Entertainment

"Whitney Houston was the greatest singer I've ever heard and she will be truly missed." - Tony Bennett in a post on Twitter.

"The morning of the Grammys, the world should pause and pray for the memory of a gifted songbird." - Rev. Al Sharpton, who called for a national prayer to honor Houston and support her family.

"I've known Whitney since she was a little girl and I loved her. She was like family to me. I will miss her." - Smokey Robinson.

"Whitney was the reason many of us do what we do." - Pink, in Twitter post.

"She blessed us with so much greatness in songs that we can never ever forget her." - Producer Rodney "Darkchild" Jerkins, who worked with Houston.

"Her music inspired millions and the power of her voice was hard to match in its depth and crystalline beauty." - Los Angeles Mayor Antonio Villaraigosa, who knew Houston.