Whitney Houston

As news of Whitney Houston's death spread Saturday evening, Hollywood stars quickly began offering their sympathies and memories of the Grammy winning pop diva.

Whitney Houston dies at 48

Houston, 48, was found dead Saturday, one day before the Grammys, at the Beverly Hilton hotel, where she was expected to attend music mogul Clive Davis' annual pre-Grammy gala.

Musicians and celebs poured out their sympathies on Twitter:

Paula Abdul: "I am devastated. I am absolutely devastated at the news about Whitney Houston. Such a tragic, tragic loss."

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

Tony Bennett: "It's a tragedy. Whitney Houston was the greatest singer I've ever heard and she will be truly missed."

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."

Toni Braxton: "My heart is weeping...RIP to the Legendary Diva & Icon Whitney Houston!!!!! Such an incredible influence over music as a whole! She's paved the way for every single singer in the music industry. Iconic, legendary, innovating, amazing, humble...the best in the world."

Look back on Whitney Houston's life

Nick Cannon
: "'To be absent from the body is to be present with the Lord.' RIP to Whitney Houston a true queen."

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."

Simon Cowell: "I am so sad to hear about Whitney. We have lost one of the greatest singers of all time."

Perez Hilton: "Sending so much love and strength to Whitney's daughter right now! May she be protected by light and have a life filled with peaceful times."

Randy Jackson: "Wow I am devastated. the world has lost another one of the best voices in history. RIP whitney houston, so fortunate am I to have worked with u, and have u touch my life. may god bless this family."

Wyclef Jean: "This is the saddest thing I've ever had to write in my life, R I P to one of the greatest humans that I have ever known Whitney Houston."

Bret Michaels: "My thoughts and prayers go out to the family of Whitney Houston. A legend with the voice of an angel, she will be missed."

L.A. Reid: "I am completely devastated by the loss of the greatest voice of all time! R.I.P. Whitney Houston. I will always love you!"

Rihanna: "No words! Just tears."

Joan Rivers: "Whitney Houston. What a sad tragedy -- the end of the life of an incredible talent. RIP to an amazing singer and legend."

Ryan Seacrest: "At Grammys rehearsal hearing Whitney Houston has passed away at 48. Everyone here is absolutely stunned."