The 70-year-old singer, who has eight children from various relationships, has kept all his stage costumes, but his kids took some of them as they thought the outfits were "really cool", reported Female First.
"I've still got all the stuff upstairs from way back then and literally my waist was like that. I'm about (a) 33 now. There's tons of stuff up there. The kids have nicked a lot of it.
"When they were going through their teenage years they thought all that stuff was really cool and I never got it back," he said.