Year In America August 7, 2008

Katy holds off Chris and Rihanna once again, but the latter's downloads build and build. Estelle rises to 12, M.I.A. jumps to 16, and only two new tracks find their way to the top 40:

Jonas Brothers "Tonight": Singers strain to emote while guitars chug along doggedly. Their worst song ever? NO TICK.

T-Pain f. Lil Wayne "Can't Believe It": The Quirk brothers attempt a sentimental ballad. Not credible. A solid win for DON'T LIKE ANY.