Who did Miley Cyrus get into a hilarious cat-fight with?

Miley’s latest Instagram stunt proves that the We Can’t Stop singer is always up for a laugh.

The 21-year-old singer shared a video of her and Avril Lavigne pretending to have a cat-fight about who the most famous person in Canada is.

Cyrus, while sitting backstage in her dressing room after performing show in Toronto is confronted by Lavigne, who says: “Oh, hey, Miley, I’m actually, like, the most famous person in Canada.”

Miley then points out to Avril that she may not be from Canada but she is probably the most famous person there.

The clip ends with two tackling each other jokingly.