Take That's Robbie Williams and Gary Barlow have revealed that they are in a 'diet battle'.

The pair have a four-figure bet on who can lose the most weight before their European tour in May, reports The Sun.

"Me and Gary vary in weight. We go up and down by the week. We were at my house last week when Gary turns to me and says, 'I won't be needing these clothes soon, do you want them?' – 'cos he's going on a diet'."

Williams added: "I thought, 'Right, if you're eating a lettuce, I'm eating half a lettuce'. There is now a serious game on to see who can get the thinnest for the tour."

Meanwhile, Robbie Williams is planning to revive his solo career following his reunion with Take That, it's been reported.

(by Holly Frith)