Celebrities have expressed their sadness and shock over Whitney Houston’s death at age 48.

Bobby Brown, Houston’s ex-husband, was reportedly tearful as he performed with New Edition at a show in Mississippi.

“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,” Brown told the audience.

View Photo Gallery: Whitney Houston, who reigned as pop music’s queen until her majestic voice and regal image were tainted by drug use, erratic behavior and a tumultuous marriage to singer Bobby Brown, has died.

At his annual pre-Grammy party, Clive Davis — Houston’s longtime mentor — told those gathered, “I am personally devastated by the loss of someone who has meant so much to me. She was full of life, looking forward for tonight. She loved music and she loved this night that celebrated music.”

“Saturday Night Live” flashed a photo of Houston in a sketch with character Mary Katherine Gallagher (Molly Shannon.) Houston twice served as the musical guest on the late night show.

Celebrities took to Twitter to express their grief. Read their tweets below, and read more reactions from celebrities, including Barbra Streisand and Dolly Parton, via the Associated Press here.

Mariah Carey: “Heartbroken and in tears over the shocking death of my friend, the incomparable Ms. Whitney Houston. 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.”

Dule Hill: “Sad to hear we’ve lost another one of our great treasures. R.I.P Whitney Houston you’ve inspired a generation of artists. You’ll be missed.”

Rihanna: “No words! Just tears #DearWhitney; I honestly can’t think of anything else!!!; Feels so strange being at the Grammy rehearsal right now!!”

Christina Aguilera: “We have lost another legend. Love and prayers to Whitney’s family. She will be missed.”

Sherri Shepherd: “Vesta Williams ... Whitney Houston ... too soon ... can’t make sense of it.”

Mia Farrow: “Thank you Whitney. I’m sad.”

Katy Perry: “So devastating. We will always love you Whitney, R.I.P.”

Sinbad: “Whitney take you your bow and be at peace ... You will always be special to me and I thank you Nippy!!!”

Kimora Lee Simmons: “RIP Whitney my lady... Always one of the Most Beautiful! Maybe now u will be at peace....love you and the family forever. ♥”

Pink: “Whitney was the reason many of us do what we do. “a few stolen moments is all that we share” RIP”

Diddy: “Whitney Houston!!! OMG!! I really can’t believe this. This is one of the saddest days ever.”

Solange Knowles: “At this time, the question is not how she went... It is how she will be remembered. I will always remember Whitney Houston as a true legend.”

Justin Bieber: “just heard the news. so crazy. One of the GREATEST VOICES EVER just passed. RIP Whitney Houston. My prayers go out to her friends and family.”


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VIDEO: Houston’s Super Bowl anthem was a classic

This post has been updated.