Sum 41 's music is influenced by bands like Megadeth and Judas Priest .
Sum 41 's influences include Megadeth , Judas Priest , Mötley Crüe , Pennywise , Weezer , Nirvana , The Police , Devo , Elvis Costello , Anthrax , Carcass , Green Day , Refused , NOFX , Slayer , Iron Maiden , Metallica , Guns N ' Roses , Beastie Boys , No Use for a Name , Dio , Run-DMC , Rob Base and DJ E-Z Rock , Foo Fighters , The Beatles , The Vandals , and Rancid.
Sum 41