The former Take That singer admits that spending 20 years as an entertainer has left his body in poor shape, and he struggles with a number of painful ailments while on stage.

Robbie, who has dealt with drink and drug addiction in the past, insists he has left his wild lifestyle behind and now enjoys going to bed early after his shows so he can rest up.

"I'm here now. I'm soberish. I'm 41 years old. The back is knackered, the knees are gone, the groin's gone but I'm still here to entertain," he tells New Zealand newspaper Taranaki Daily News. "Only now I do the show then go to bed."

The Angels singer's Let Me Entertain You world tour finishes at the Vector Arena in Auckland, New Zealand on Tuesday (03Nov15).

Last year (14), Robbie was forced to sit out a Soccer Aid charity match after a live show in Belfast, Northern Ireland left him with agonising back spasms.