Deryck Whibley Dresses Up as Ex-Wife Avril Lavigne for Halloween

Celebrity News Oct. 29, 2012 AT 1:50PM
Deryck Whibley and Ari Cooper Deryck Whibley and Ari Cooper Credit:

Deryck Whibley and Avril Lavigne once prided themselves on remaining amicable after their 2010 divorce. Looks like things have changed!

PHOTOS: Celebs' 2012 Halloween costumes

Sum 41 rocker Whibley, 32, and his girlfriend, Ari Cooper, celebrated Halloween weekend by dressing up as Lavigne, 28, and her new fiance, Chad Kroeger, 37. (Whibley proposed to Lavigne in 2005, and they tied the knot the following year. The spouses split in 2009, but their divorce was not finalized until 2010. Kroeger, meanwhile, proposed to Lavigne in Aug. 2012 with a 14 carat diamond ring.)

 Avril Lavigne and Chad Kroeger are seen strolling on September 13, 2012 in Paris, France.
Avril Lavigne and Chad Kroeger are seen strolling on September 13, 2012 in Paris, France.
Credit: Marc Piasecki/FilmMagic

After seeing a photo of Whibley and Cooper in costume, Nickelback's Kroeger responded via Twitter Oct. 28. "Hey Deryck, loved the costumes!" the frontman wrote. "We were going to dress up as you guys this year but all the parties had celebrity themes haha."

PHOTOS: Avril Lavigne through the years

In a January 2010 KIIS-FM radio interview, Lavigne vowed she would always hold her ex-husband in high regard. "I think we're very lucky. We've been friends for a really long time and we always will be family. We have a connection," the Canadian singer said. "Things are good. I'm really grateful for that."

Tell Us: Do you think Deryck Whibley and Ari Cooper's costumes were in poor taste?

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