"No Sleep" is an obvious standout from Wiz Khalifa's Rolling Papers, but this is crazy - the song hit iTunes yesterday, and today it is already the number one song in the country, according to the iTunes Top 100. The party-all-night anthem was produced by Benny Blanco, who is no stranger to hits (he's produced for Britney Spears, Ke$ha, Katy Perry, etc.). Khalifa's album will be in stores March 29.