1. Britney Spears, 'I Wanna Go'
This contest wasn't even close. Britney won by a landslide, which shouldn't come as any surprise. The woman works with the most successful pop songwriters in the industry. This track was co-written by Swedish songwriting legend Max Martin – the man behind everything from "Since U Been Gone" to "I Want It That Way" to Britney's first hit "...Baby One More Time." He's a 40-year-old Swedish guy, but he knows exactly what American teenage girls want to blast in their cars. The video for "I Wanna Go" starts with Britney giving a press conference, which is hysterical because she's one of the least media-accessible singers in the world. It's easier to get a sit-down with Bob Dylan than it is with Britney.