The group's tour website said that he had "tragically died" and that the rest of the band would be flying out to Majorca on Sunday.
The website also said Gately had been on holiday with his long-term partner Andy Cowles when he died on Saturday.
Boyzone announced their comeback tour last November. The band had six UK number one hits between 1994 and 2000.
The News of the World's showbusiness editor Dan Wootton told Sky News Gately had gone out for drinks, returned to his accommodation and gone to sleep, but never woke up.
still busy - lots going on. Focussing on finishing my book next so may be quiet here [sic]
Gately's last Twitter post, 6 October
In pictures: Stephen Gately
Boyzone manager Louis Walsh, who was due to appear as a judge on the X Factor results show on Sunday, told the newspaper: "We're all absolutely devastated."
He said: "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 and we will rally around each other this week. He was a great man."
Gately revealed that he was gay and had a boyfriend in June 1999.
Stephen Gately and Andy Cowles
Gately and Cowles tied the knot in 2006
The two later held a private civil partnership ceremony in London in 2006.
After Boyzone split Gately continued his career as a solo artist, but was dropped by Polydor in 2001 after three Top 20 singles.
He enjoyed further success performing in musicals, including Joseph and the Amazing Technicolor Dreamcoat in 2003-04.
Gately also appeared in 2007 on ITV1's reality series Dancing on Ice, and was voted Hero of 1999 at the Smash Hits Poll Winners' Party.
His last message on the social networking site Twitter, posted on 6 October, said: "still busy - lots going on. Focussing on finishing my book next so may be quiet here" (sic)
bbc.co.uk
Dat is toch wel triest, om zo jong te gaan
Rip Ik was geen enorme fan van Boyzone ( Ronan
) maar had wel een paar singeltjes en cd's van ze, vond ze wel tof maar was meer voor Take That. (vroegah, toen ze niet naar meerdere boybands tegelijkertijd kon luisteren want dat was verraad). . Was vroeger echt helemaal gek van die gast.. echt bizar dit 
ik hoor het nu net op t nieuws... Nog zo jong R.I.P.
Zelf vond ik ook een aantal liedjes wel stiekem leuk
Wel een bizarre dood en dan zo jong
RIP
quote:Ze moeten nog onderzoekenOp zondag 11 oktober 2009 17:45 schreef Asskicker14 het volgende:
Overdosis? Of had hij hartproblemen?