10. Best Scare: Nine Inch Nails

Trent Reznor and Co. may have redefined the word "frightening." Their 1 A.M. set was simply pants-wetting (in a really good way) with Reznor and his band assaulting the crowd with sharp and sinister tunes delivered at full ferocity. The fact that Reznor -- girth-y neck and bulging biceps -- looks uncannily like Henry Rollins only added to the terror.

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