All Killer No Filler is the debut studio album by Canadian rock band Sum 41, released on May 7, 2001. It was certified platinum in the United States, Canada and in the UK. Despite mixed reviews, the album was a commercial success, peaking at No. 13 on the Billboard 200. The single, "Fat Lip" peaked at No. 1 on the Billboard Rock Tracks. In recent years, the album has received highly positive reviews, and has been praised as the album that gained the band success. The album has been considered by critics and fans as a pop punk classic.