Karaoke Video Regular Show : Season 2 Episode 28
TV-PG Cartoon Network 23m
Aired: August 1st, 2011 @ 7:30 PM EST on Cartoon Network
Mordecai and Rigby spend a night at Carrey O'Key's Karaoke bar and sing live, but the song they sing (We're Not Gonna Take It) is so motivating that they accidentally begin talking trash about Benson, Pops and Skips.
