Plus: Drake, Arrested Development, Foo Fighters ...
The "Start It Up" remix is here.
Also Ryan Leslie and Fabolous.
What's next? "Chili's, Friday's, Friendly's"?
Also, guess who's beefing via Twitter?
Let's just say it struck him that "Cobain" rhymes with "brain."
So what is the song of the summer anyway?
Plus: Andrew W.K. and Vampire Weekend cover Tom Petty!
Not even the coldest-hearted bikini-clad cyborg could resist that falsetto.
50 Cent, Timbaland, and more!