Robbie Williams is working on new music with Take That.
Robbie Williams
The 42-year-old singer has reunited with his former bandmates, Gary Barlow, Mark Owen and Howard Donald, to write and record a number of tracks for their Greatest Hits album, which will be released next year to celebrate the 25th anniversary of the group.
A source told The Sun: "Robbie loves being part of the creative process and he has lots to offer.
"He influenced the last album he featured on with his electro sound, which reflected his solo work at the time.
"He's a changed man since studio sessions back in the day and takes things far more seriously."
Robbie - who first quit the band in 1995 - previously rejoined the group in 2010, featuring on their 'Progress' album and joining them for the 'Progress Live' tour.
He left again in 2012 but frontman Gary has repeatedly said that he is welcome back any time after they put their feud behind them.
It was previously revealed that Robbie is now "at peace" with Take That and has been keen to reunite with them to celebrate their remarkable career.
An insider said: "Robbie says he is up for coming back and performing again. He feels that he is at peace with the group and wants to help commemorate their astonishing rise."
It has not yet been revealed if Jason Orange - who quit the band in 2014 - will return to mark the anniversary but Gary has previously insisted it is unlikely.
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