Sum 41 is a rock band from Ajax, Ontario,[1] active since 1996. The current members are Deryck Whibley (lead vocals, rhythm guitar), Jason McCaslin (bass guitar, backing vocals), Steve Jocz (drums, backing vocals), and Tom Thacker (lead guitar, backing vocals, keyboard). Sum 41 has sold over 4 million albums worldwide.
In 1999, the band signed an international record deal with Island Records. Since then, the band has released four studio albums, all of which have been certified platinum in Canada.[2] Their most successful album to date is All Killer No Filler, which is certified 3x platinum in Canada and platinum in the United States.[3] The album was fueled by the single "Fat Lip", which reached the top position on the Billboard Modern Rock chart, making it the band's most successful single.[4] The second single from the album, "In Too Deep", reached number-ten on the Modern Rock chart.[4]