The stars dedicate their emotional performances to the late singer at the pre-Grammys bash
Stars react to Whitney Houston's death
Whitney Houston in pictures
We take a look back at the life and career of the late, great Whitney Houston.
Bruno Mars, JLS, Olly Murs, The Wanted, Cover Drive, Jessie J and Enrique Iglesias are just some of the stars to post messages on Twitter. Read them here.
JLS - Oritsé Williams
"I can not believe Whitney Houston has died! Another Inspirational Superstar has left us. My prayers go out to the family! Oritse x."
"Jeez…is it true Whitney Houston is dead?!? If so #RIPwhitneyhouston what a sensational talent!!"One of the best singers ever!!"
"Heartbroken and in tears over the shocking death of my friend, the incomparable Ms. Whitney Houston,"
Bruno Mars "
This is terrible news. I'm sick to my stomach. Nobody sang like Whitney"
"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."
The Wanted - Nathan Sykes
"One of the best voices to ever grace the earth, a true inspiration! Such heartbreaking news. Whitney Houston RIP."
The Wanted - Max George
"So sad about Whitney Houston.... Beautiful lady with a beautiful voice... R.I.P'
The Wanted - Siva Kaneswaran
"My thoughts and prayers go out to Whitney and her entire family. Working with her is an experience that I will cherish forever."
"I think today was the most emotional day of my career... I am lost for words and so overwhelmed. Whitney I sing because of you and will continue to do so in your honour always and forever. X"
"Prayers go out to Whitney Houston's family. R.I.P Whitney. "
"I'm so sad. Whitney Houston was so kind, sweet, wonderful, amazing, talented and a true gift to the world. #Iwillalwaysloveyou"
"I am beyond hearbroken. Whitney Houston was undoubtedly one of the greatest singers & performers of all time & such a huge influence on me. She embraced me when I first started out with Destiny's Child, with love, with encouragement and with that powerhouse voice. My deepest sympathies and prayers go out to her daughter, her mother and to all of her loves ones."
"No words! Just tears #Dear Whitney, I honestly can't think of anything else!!!"
"We will always love you Whitney, R.I.P."
"We have lost another legend. Love and prayers to Whitney's family. She will be missed."
Fans' tributes to the late singer are pouring in from all over the world