We weren't even there and we were cheering, too!
And it sure seems like no one was complaining of the choice of Ben for Batman then!
Check it all out in the video (above) !!!
Who doesn't love a boy band?!
Hellooo, the dancing, the music, the cuteness!!
While performing Rest of Our Lives, IM5 pumped up the crowd in such a way it could rival the girls going wild for One Direction.
For realz, watch out Harry Styles because these boys might be snagging some of your fans!
Ch-ch-check out the performance and craziness (above)!