9. Avicii premiered his new folk-house album. (Weekend 2)
8. Hardwell (Weekend 1)
7. Deadmau5 (Weekend 1)
The mau5 played the same set both weekends. But we're guessing festival-goers didn't care too much, and it was one of the more exciting sets he's done in recent years. If it ain't broke, don't fix it?
6. Baauer proved he could do more than just the "Harlem Shake." (Weekend 2)
5. Armin van Buuren (Weekend 1)
4. Kaskade (Weekend 1)
2. Tiesto (Weekend 2)
Hands-down, Tiesto has always reigned king in crowd-pleasing, massive raves. This year's set was no different.