Juno Award-winning Canadian rock outfit Sum 41 balances energetic pop-punk and thrashing metal, a sound evolved over the decades as the once-playful crew grew into hardened scene elders. They hit the worldwide radar in 1996 after their hometown of Ajax, Ontario, proved unable to fully contain the foursome's early mixture of arena-sized riffing, hip-hop poses, and crass humor. Their breakthrough major-label debut, 2001's All Killer No Filler, featured the chart-topping MTV hit "Fat Lip" and its follow-up "In Too Deep." From there, the band's mischievous pop-punk style was stead...