Robbie Williams is reuniting with Take That - but for one night only on BBC's Let It Shine

And they're performing one of the band's classic tracks.

It's the reunion Take That fans have been waiting for... sort of. Robbie Williams has announced that he will reunite with the band for a one-off performance this month.

Robbie will join Gary, Howard and Mark (not Jason, he's still out) for a sing song on the BBC's Let It Shine final on Saturday, February 25.

It hasn't been confirmed yet which Take That song the'll be singing, they've teased it'll be on of the band's classic numbers.

MORE: Take That's complete Official UK Chart history

Robbie will also serve as a guest judge on the final of the show, which is fronted by Gary, as they put together a group for his upcoming stage musical The Band, based on the songs of Take That.

Robbie said: "I'm looking forward to being back with Gary, Mark and Howard on Let It Shine and am excited to be a guest judge for the very special final."

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Aside from a brief reunion at Robbie's BRITs Icon show last year, this will be the first time he has performed with Take That since they toured their Progress album in 2011.

Meanwhile, the three full-time members of Take That will perform their new single Giants during Let It Sine's semi-final this Saturday (Feb 18). The track is the first taste of their upcoming album Wonderland. The trio posted this teaser ahead of its release below:

Out Friday 17 February, #Giants - the first single from our new album Wonderland. pic.twitter.com/iX5Uhp9VTE
— Take That (@takethat) February 10, 2017