It would be a mistake to view Sum 41 as just another second-rate band cashing in on the early-'00s punk-pop boom, even if it did recruit Jerry Finn to produce All Killer No Filler. Just as Finn had done for both blink-182 and Green Day, he charges Sum 41's punk-pop with a razor-sharp edge, the sort of dynamic in-your-face sound that helps this music cross over to MTV and radio so well. Besides the notable production, a lot of credit should go to the band as well. Its songwriting is obviously more diverse here than it was a year earlier on its debut album, Half Hour of Power; for example, the group's rap and '80s metal influences rise to the surface more frequently here than on that first album and instill a fun sense of camp. "Fatlip" is perhaps the best example of how Sum 41 has made an effort to diversify the music with more than just power chords and melodic punk vocals.