Label: Interscope, Fiction

Rock went back to its stripped down roots in the aughts, with an emphasis on the basics: guitar, drums, and vocals, and nobody had a voice quite like the Yeahs' Karen O. "Maps" ended up being one of the best love songs of the decade, and we can finally admit it: Chick-fronted indie rock groups are cooler than chick-fronted rap groups (sorry Crime Mob!).