Deryck Whibley dissed Avril Lavigne and Chad Kroeger. Ish is getting real!

Yesterday we told you that until we are in an actual couple, we would just barely tolerate those couples who coordinate their Halloween costumes. (Call us bitter, it's fine, we don't care.) However, we did make an exception for Kimye's adorable "sailor who loves a mermaid" moment, and now we'll make another for Sum 41 frontman (and Avril Lavigne's ex hubby) Deryck Whibley and his girlfriend Ari Cooper, who are dressed as, brace yourselves, Avril Lavigne and Nickelback's Chad Kroeger! The couple. Because remember when they got engaged? How could you forget?

Read more about Deryck Whibley's Avril Lavigne-inspired Halloween costume after the jump. 

As you can see in the photo above, Deryck cross-dressed as Avril while his GF dressed like Chad (P.S. look at the ridiculous red solo cup with Chad's name on it!). WE CANNOT. Hysterical? Yes. Mean spirited? Absolutely. But nobody can deny that the duo's look is pretty funny. Well, maybe one person can and it's Avril's man, Chad Kroeger, who took to Twitter to rail on Avril's ex: “Hey Deryck loved the costumes! we were going to dress up as you guys this year but all the parties had celebrity themes haha!” He added, “You owe us a couples bowling grudge match see you when I get back from Russia!” BUUUUURN. Also, how much would you guys pay to be a fly on a lane in that bowling match? Just as we suspected, your entire life savings.

Photo credit: TMZ