ContactMusic — Chad Kroeger is not a happy man. No, the Nickelback star, 37, took to Twitter to hit back at his fiancee Avril's Lavigne's ex-boyfriend Deryck... more info

411 Mania — Classy move... more info

ContactMusic — Deryck Whibley and a friend dressed up as Avril Lavigne and Chad Kroeger for a halloween party, much to Kroeger's distaste.Halloween is prime time to... more info

ContactMusic — Rocker Chad Kroeger has taken aim at his fiancee Avril Lavigne's ex-husband Deryck Whibley after the Sum 41 star and his model girlfriend mocked the... more info

ContactMusic — Avril Lavigne's ex-husband went to a Halloween party dressed as her.Deryck Whibley dressed as the 'Sk8r Boi' singer - who he was married to between... more info

Chorus.fm — Deryck Whibley (*Sum 41 (http://www.absolutepunk.net/sum41)*) and his girlfriend dressed up as Avril Lavigne and Chad Kroeger for Halloween (http://www.buzzfeed.com/lyapalater/avril-lavignes-ex-dressed-up-as-her-for-halloween). The hilarity doesn't ... more info

Dlisted — No, Kelly Clarkson didn't go blond. This is Avril Lavigne's bleached porcupine-looking ex-husband, Deryck Whibley as her and that's his girlfriend Ari Cooper as Chad Kroeger. There's no shade like Canadian shade. The last time I l... more info

Big Apple Music Scene — Celebrities trolling each other with mocking Halloween costumes: It's a beautiful thing. More » With Deryck Whibley As Avril Lavigne, Celebrity Halloween Costumes Were Really Meta This Year is a post from: Crushable more info

Jam! Showbiz Music, Canada — Deryck Whibley and his model girlfriend celebrated Halloween by dressing up as the rocker's ex-wife Avril Lavigne and her new fiance Chad Kroeger for a costume party. more info

ContactMusic — Deryck Whibley and his model girlfriend celebrated Halloween by dressing up as the rocker's ex-wife Avril Lavigne and her new fiance Chad Kroeger for... more info