Music·Posted on Jun 9, 2013This Is What The Lead Singer Of Sum 41 Looks Like NowYikes.by Ryan BroderickBuzzFeed News ReporterLinkFacebookPinterestTwitterMail Deryck Whibley, Avril Lavigne's ex-husband and lead singer of Sum 41, went out to an event last week with his current girlfriend Ari Cooper. And he's looking a little different these days.. Let's compare: 2012 vs. 2013. I guess the Chavril wedding hit him a little harder than most people, huh? Tap to play GIF Tap to play GIF