I've seen some pretty creative, scary, funny, disgusting, offensive, and borderline inappropriate Halloween costumes in my time, but I must say that Sum 41 lead-singer/ex-husband of Avril Lavigne - Deryk Whibley's costume this year was THE BEST THING EVER.
You might remember that Avril has since married douchey Nickelback front-man Chad Kroeger & the two have said they'll be appearing on each other's upcoming albums, but Deryk is still getting the last laugh. He posted a picture to twitter featuring himself dressed as Avril & his buddy dressed as Chad. Together, "Chavril" wins ANY costume-contest as far as I'm concerned.
However... Chad Kroeger took to the Nickelback twitter feed to respond to Deryk's creative/hilarious/genius costume with the quote: "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.
Ooohhh, buuuuurn (not). Still no word from Avril. FULL STORY [EvilBeetGossip]