Activision's presumably outrageously expensive E3 event was largely devoid of megatons, but rich with appearances from musical artists such as Usher, NERD, Chris Cornell, Tool's Maynard Keenan and Jane's Addiction. However, a brief gameplay trailer for DJ Hero 2 revealed a fairly lengthy list of contributors to the game's mashed-up soundtrack. You can check out the full list after the jump -- but we'll say right here, right now, that if they mix Justice with The Prodigy, we are going to lose our minds.