Coachella Security Appear To Beat Up Belly During The Weeknd's Set

Belly -- the Weeknd-affiliated rapper who co-wrote much of Beauty Behind The Madness, not the recently reunited alt-rock quartet led by Tanya Donelly -- was seemingly attacked by Coachella security during the Weeknd's headlining set at the festival last night. TMZ reports that the rapper, who had performed earlier in the night, was in a line of people…