In honor of Throwback Thursday, today's countdown on TRL is an epic battle of the bands. This week, we've got Paramore, My Chemical Romance, Panic! At The Disco, 30 Seconds To Mars, and Fall Out Boy on deck for a pop punk themed playlist. Not only do we need your help deciding between all of these iconic bands, but your votes will determine our countdown ranking. Take the poll now and tune into TRL at 4:00pm ET to find out who's going head-to-head!