Presenting a collection of 15 hot singles that are the highest-ranking downloads of 2009, from artists such as Kings of Leon, Katy Perry, and Taylor Swift. Songs: Battlefield Œ‡ Big Green Tractor Œ‡ I Gotta Feeling Œ‡ Knock You Down Œ‡ Love Drunk Œ‡ Lovegame Œ‡ Never Say Never Œ‡ New Divide Œ‡ Obsessed Œ‡ Party in the U.S.A. Œ‡ Send It On Œ‡ She Wolf Œ‡ Use Somebody Œ‡ Waking Up in Vegas Œ‡ You Belong with Me.
