The 24-year-old singer - who recently confirmed her split from husband Deryck Whibley - confessed that she caused chaos during a recent stay in the UK by upturning each of her bandmembers' rooms.
She told OK: "I definitely have trashed hotel rooms. I don't do it all the time, but once in a while. In London, I was with my band, and I was in the bar with my friend Devon, who's my guitar player. I looked at him and it was like two o'clock in the morning and I said, 'I think it's time for a band initiation'.
"So I went to the front desk and got keys to everyone's room. We got buckets of ice, and we got everybody's room keys and threw ice on them, on their mattresses, all over. It was really funny."
Lavigne added: "I'm a big fan of hotel mini-bars. I'm always like, 'Everyone come in my room, let's crash the mini bar'. I like to have fun with that."
> Avril Lavigne 'married too young'