Robbie Williams last night got one step closer to a reunion with Take That.
Williams joined band members Gary Barlow, Mark Owen, Jason Orange and Howard Donald on stage at London's Royal Albert Hall for the Children In Need concert - but insisted the real reunion was yet to come.
While the two acts performed separate sets during the concert they reunited on stage to sing The Beatles' Hey Jude with all the show's acts during the grand finale.
The singalong included Sir Paul McCartney who led the concert's finale, kicking off with renditions of Back In The USSR and Get Back.
In scenes which would bring tears to the eyes of any Take That fan, Barlow and Williams even sang together with their arms around each other's shoulders.
Take That had opened the concert with their song Greatest Day and teased the crowd with the promise of reunion.
Welcoming the 4,500-strong crowd, Barlow said: "What a perfect night for us to introduce an old friend."
An emotional-looking Williams appeared on stage alongside his old bandmates, but only briefly.
Barlow and Williams have both hinted at a reunion of the band's original line-up but the band left the stage to allow Williams to perform his solo singles Bodies and You Know Me alone.
Speaking after his performance, Williams said he was welling up before joining Take That on stage and he wanted to "milk" the moment for a bit longer.
Asked why he did not perform with the band, Williams said: "Something's planned and you don't want to shoot your bolt, do you?"
He added: "I started tearing up just before I came on and the lads were singing and knowing it was just about to happen and knowing what the reactions were going to be like and then all my team were like 'Please don't cry'.
"And I think we should have milked it for a lot longer than we actually did. I think Gaz, in his wisdom went 'Right, we should get off now, let the lad do his singing'. That was probably what was in his head because I was trying to get them back to do a bow and everything. That's the first time in 15 years, we should have least stayed there for 10 minutes."
He refused to be drawn on when the reunion would take place, but denied it would be at next year's Brit Awards.
He said: "We'll save that for something special, whatever that is."
Barlow said after the concert that clinching Williams for the line-up was the "icing on the cake".
He said: "He was the last one I was hoping to get here. He was the icing on the cake of the whole gig for me.
"When we were all stood in a line we didn't want to leave ... it felt great having him back. It feels like he's back, it does."
Also on the bill tonight was the band Muse, who performed two songs before making a dash across London for their gig at the O2 Arena.
Cheryl Cole sang her solo single Fight For This Love, dressed in a white military-style ensemble and backed by a troupe of dancers.
Former X Factor winner Leona Lewis sang the Snow Patrol hit Run and her latest single, Happy.
Other acts included Dame Shirley Bassey, Dizzee Rascal, Katherine Jenkins, Annie Lennox and Lily Allen.
The night, which has raised more than £500,000 in ticket sales for Children In Need, was hosted by BBC Radio 1 DJ Chris Moyles and will be broadcast on BBC1 on November 19.
Concert-goers had to register with Children In Need, and were picked randomly for the opportunity to buy the tickets, which cost between £50 and £250 each.