Avril Lavigne’s ex-husband, Sum 41’s Deryck Whibley, was spotted at a Halloween party dressed as his ex-wife, with his current girlfriend, Ari Cooper, playing the part of Chad Kroeger with a wig and fake goatee.  And here I thought the original couple was ugly: 

Kroeger’s response to the picture was apparently “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”  I guess he would’ve had to tell them he was going as the guy from Good Charlotte?