Whitney Houston dead: Mariah Carey, Rihana, Christina Aguilera, Justin Bieber and other celebrities react to the tragic news

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

Justin Bieber (@JustinBieber): “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.”

Mariah Carey (@MariahCarey): “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.”

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

Rihanna (@Rihanna): “No words! Just tears #DearWhitney”

Matthew Morrison (@Matt_Morrison): “I’m very sad to hear about the passing of Whitney Houston, may she rest in peace.”

Whitney Houston was found dead in Beverly Hills Hilton Hotel, Saturday (11.02.2012).