Sum 41’s Deryck Whibley Pokes Fun at Ex Avril Lavigne & Fiancé Chad Kroeger

Posted Monday October 29, 2012 1:55 PM GMT

He’s always been known as a prankster, so it’s no wonder Deryck Whibley took Halloween as an opportunity to make fun of his ex-wife Avril Lavigne.

Over the weekend, the Sum 41 frontman and his girlfriend Ari Cooper dressed up as Avril and her new fiancé Chad Kroeger, and of course they switched genders!

And after photos of the getups began making the internet rounds, Kroeger took an opportunity to fire back a few comments of his own.

Chad tweeted, "Hey Deryck loved the costumes! We were going to dress up as you guys this year but all the parties had celebrity themes,” before challenging them to "a couples-bowling grudge match.”

Photo Credit: Twitter