Otis Day and the Knights + The Immaculates

You'll recognize Otis Day and the Knights as the soul-screamin' band from National Lampoon's Animal House (hollering out "Shout" and "Shama Lama Ding Dong"), but DeWayne Jessie's crew tours for real, too. Go sing along tonight (and you'll get free entry if you show up in a toga before 8pm).