9. Keith Urban, "Somewhere in My Car"
Urban’s bittersweet story of reliving carnal pleasures with a lost love certainly has its charms: an insanely catchy melody, sexy lyrics that combine sorrow and passion, trademark blazing guitar solos, a plaintive vocal delivery and, did we mention, a banjo? But what propels this song into overdrive is the fact that although the lyrics scream "slow ballad," Urban, who co-wrote the song with J.T. Harding, turns it into a uptempo, turbocharged tale of regret. And let's be real: This chart topper is helped mightily by a video so hot that it steams up your computer screen.