One must ask him/herself who HFS would be playing now if they were still around.
The pessimist in me says Fallout Boy, My Chemical Romance and 3 oh!3 would be prominent in their rotation and therefore, would fill the headliner slots.
well on their FB page they posted this:
new music just added from:
American Bang, Black Keys, Deftones, Five Finger Death Punch, Kottonmouth Kings, LCD Soundsystem, Orianthi and The Dead Weather.
so.....i would take a headlining spot from LCD!