Traditional heavy metal bands such as UFO, Black Sabbath, Budgie, new wave of British heavy metal (NWOBHM) bands such as Judas Priest, Motörhead, Iron Maiden, Diamond Head, and Venom, and punk rock bands such as the Sex Pistols and Ramones had a significant influence on Megadeth's sound. Hard rock bands such as AC/DC, Queen, and Led Zeppelin, as well as German acts like Scorpions and Accept, were also influential on the group's guitar style. Although the music has roots in punk, university professor Jason Bivins wrote that Megadeth followed the basic blueprint of Motörhead and Iron Maiden. He described the style as a mix of "the instrumental virtuosity of the NWOBHM with the speed and aggression of hardcore punk", while also drawing lyrical inspiration from the horror-obsessed punk band Misfits. Mustaine has also listed albums by the Beatles and David Bowie as recordings that influenced him.