#8: AVRIL LEVIGNE

What to look forward to this year: After her single "Girlfriend" ended its Billboard reign in 2007, Levigne somehow devolved into that sk8r girl who was only relevant to the mid-2000s pop punk period as the female answer to Blink 182. She recently made a comeback statement, however, by aiding Dick Clark's ball-dropping celebration New Year's Rockin' Eve, to debut her catchy new single "What the Hell?" Next up is her true-to-form, pop-rock album Goodbye Lullaby, due for release on March 8th.