Looking for a way to liven up a sleepy Sunday night? If you're an Xfinity 3D customer you should definitely stick around after the 2011 Tim Hortons NHL Heritage Classic to check out a performance by Grammy-winning rockers Kings of Leon shot in Hamburg, Germany during their 2009 tour. Watch the Followhill brothers rock out their Grammy-winning hits "Sex on Fire" and "Use Somebody." If there was any question of who would inherit U2's crown as the next generation of arena rockers, Kings of Leon are it. Catch them Sunday night at 8 PM EST on Xfinity 3D.