Stephen Gately of Irish band Boyzone has been found dead on holiday in Majorca, Spain.
Gately was on holiday with his partner Andrew Cowles and the rest of the band are believed to be travelling to Majorca. The cause of death is not known.
The sudden death of the 33-year-old has shocked friends, fans and music figures, who have been paying tribute.
GATELY'S BOYZONE BANDMATES
"We are completely devastated by the loss of our friend and brother, Stephen.
"We have shared such wonderful times together over the years and were all looking forward to sharing many more. Stephen was a beautiful person in both body and spirit.
"He lit up our lives and those of the many friends he had all over the world. Our love and sympathy go out to Andrew and Stephen's family. We love you and will miss you forever, 'Steo'."
BOYZONE MANAGER LOUIS WALSH
"I'm in complete shock. I was only with him on Monday at an awards ceremony. We don't know much about what's happened yet.
"I only heard after The X Factor [on Saturday] and we will rally around each other this week. He was a great man."
FORMER IRISH TAOISEACH BERTIE AHERN
"The Gatelys are in my own constituency. I know the family, I know Stephen. Ronan Keating is a very good friend of my daughter's, my family.
"He [Gately] was with us the other night with his boyfriend Andy, he came to my book launch.
"It's just such a tragedy. Boyzone and Stephen have all been part of Irish life, and far wider than that, [for] the last 15 years, and so successful, so it's a huge, huge tragedy. It's so sad.
"He was 33 years of age, 15 years at the top, a fine musician. It's just a huge tragedy to Irish entertainment, Irish music and further afield as well."
Members of fellow Irish boy band Westlife described Gately as a "friendly, positive spirit and a passionate performer".
"We are, like everyone else, in shock today. We met Stephen Gately back in 1998 when we first started out and since then had the pleasure of meeting him many times.
"Himself and the Boyzone lads paved the way for us as a band.
"Our thoughts are with Andy and the rest of his family, his friends, his legions of fans and of course his bandmates Keith, Mikey, Shane and Ronan who will be devastated at the loss of a truly beautiful person."
SIR ELTON JOHN
"David and I are stunned by this tragedy. Stephen was the kindest, gentlest soul. We send our love and condolences to his partner Andy and to all his friends everywhere."
BROADCASTER PAUL GAMBACCINI
"He's far too young to have passed away - this is a great shame.
"Stephen had this very warm voice. It was not a lead voice in the sense of carrying an entire song with a lot of excitement and conviction, but it was a beautiful voice for colour and for an alteration of mood. He had a wonderful vocal role that he performed excellently.
"The period of success for Boyzone was historic. They were, in the 90s, the best selling boy band in singles terms. That's right, they sold more singles than Take That.
"I do believe Stephen was going to be a lasting entertainer. Not a pop star, but he had been in a couple of West End musicals. He had a fine voice that was going to stick with him and I believe he would have had a long career bringing happiness to many hundreds of thousands of people.
"He had a successful civil partnership with Andy, and whenever I saw them together they were a really happy couple. It didn't impact on the career - in real life, the fans don't care.
"I will miss him personally and everyone will miss him professionally."
ANDREW LLOYD WEBBER AND WIFE MADELEINE
"Madeleine and I are shocked and deeply upset by Stephen's untimely death. He was enormously talented and I very much enjoyed working with him on Joseph and the Technicolor Dreamcoat and the Boyzone hit No Matter What.
"Madeleine and I got to know him well over the years, entertaining him at our Sydmonton Festival. His death is a great loss to the musical world."
Caroline de Wolfe and Rosemary Reed of Back Door Management:
"Stephen was a very talented and much loved client and it was our great pleasure to work with him and our thoughts and condolences are extended to his loved ones at this very distressing time.
"We are shocked and saddened that he is no longer with us and had such a short life as he had much more to give.
"Stephen was both in and out of the spotlight a genuine, funny and very charismatic man who was a joy to spend time with and it was a privilege to know him.
"He retained that rare quality of being humble despite his fame and this endeared him to those he worked with."
BROADCASTER STEPHEN FRY
Writing on Twitter: "Just heard the very sad news about dear Stephen Gately. What a dreadful shock. He was loveable and sweet-natured and will be hugely missed."
BROADCASTER EMMA FORBES
"A sweeter man I've never met. He was just the loveliest guy and I am truly saddened. Such a young age, such a great talent, a divine person.
"He had a beautiful voice and a really lovely personality. Whenever I met him it was a total joy to interview him."
SINGER KATHERINE JENKINS
On Twitter: "So so sad to hear the news about Stephen Gately. We had a really fun night out with him at the Ivy Club a few weeks ago. Good memories to cherish."
IMPRESARIO SIMON COWELL
On Sunday's The X Factor: "I want to say on behalf of us, the show, that this is really, really tragic news.
"I want to send out my condolences to the family. Our thoughts are with Louis [Walsh] which is why he's obviously not here tonight.
"They were incredibly close - he did a lot for Stephen."