Gary Barlow says that Elton is a proud dad and that he showed him pictures of his children while they worked together.
Elton and his partner have two sons together and when the Rocket Man worked with Barlow on the X Factor judge's solo album Since I Saw You Last, he took time to show off images of his boys on his iPad.
Barlow told Jonathan Ross, ''We had a few hours in the studio recording this track for the record, but it was so sweet to see him reach in his bag and pull out his ipad and start showing us all pictures of the kids and he was so proud.
''It just goes to show, no matter who it is, kids change people. And he was besotted by his children. It's beautiful.''