Jack Black put Coco Pops up his butt

Reuters

UNUSUAL HOBBY: Jack Black has revealed that when he was a child he used to put Coco Pops up his butt.

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Jack Black - who recently became a father for the second time - admits he found unique ways to entertain himself when he was a child, and found the chocolate-flavoured cereal highly amusing.

The ‘Kung Fu Panda' star said: "I also put Coco Pops in my butt. Why? For comedy and experiment. I was a scientist and I discovered you could put a lot of them up your butt."

Jack, 38, recently revealed he is desperate to lose weight so he can star in more nude scenes.

He said: "When I saw my rear end in my nude scene in 'Margot at the Wedding', it actually had a double chin. I've joined a gym because the next time you see me naked I'll be trim."

Jack also said he wanted to slim down because he was getting worried about his health.

He added: "I want to feel good too. Now if I eat a cheeseburger and fries, it tastes so good at the time and then right after it's like, 'What did I do? Why?' "