Fall Out Boy

Matching military outfits, celebrity romances and hip-hop collaborations — Fall Out Boy has become the Coldplay of punk rock. But while Chris Martin's fan club numbers have steadily increased, the members of FOB have played their increasingly mature arena-rock anthems to more empty seats. Piano overdubs and an Elvis Costello cameo automatically make 2008's Folie à Deux the band's most sophisticated album to date — and while singles "I Don't Care" and "America's Suitehearts" may fail to capture the youthful exuberance that made "Sugar, We're Goin Down" the official guilty pleasure of 2005, they solidify Fall Out Boy's intentions of breaking free from the emo mold. For many pop-punkers, that's fine, especially because bassist Pete Wentz's Decaydance label is full of young bands that are more than willing to do the whining for him.