Amid all the excitement about The Libertines reuniting for Reading and Leeds, it's easy to forget that the rest of the line-up is pretty intriguing and unexpected too.
How many people, after all, would've predicted that the three headliners for 2010 would be Guns'N'Roses, Arcade Fire and Blink 182?
G'n'R have past form, of course - a lot of people have fond memories of their Leeds appearance in 2002. But the other two acts are unknown quantities in terms of headlining UK festivals.
You'll find the full line-up (so far) here. And here's a video interview in which festival organiser Melvin Benn discusses the headliners.
What do you think of his choices?