Who's Got Jokes!? Avril's Ex-Hubby & His New Girl Dress Up As Her & Chad Kroeger (PHOTO)

Avril Lavigne and her new fiance Chad Kroeger definitely have jokes!

The two were spoofed by her ex-hubby Deryck Whibley and his new girlfriend Ari Cooper, who dressed up as Avril and her boo for Halloween.

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After seeing the picture on Twitter, Chad Kroeger just had to get back at Deryck.

He tweeted:

"Hey Deryck loved the costumes! We were going to dress up as you guys this year but all the parties had celebrity themes haha! -CK"

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That was a good one!

Besides, Deryck seems a little bit obsessed with Avril... what girlfriend thinks it's cool for their boyfriend to dress up as the ex-wife?

SOURCE: TMZ Photo Credit: Deryck Whibley Twitter