Sing it On - Season 2 Episode 4 -

In a cappella, you keep your friends close and your enemies closer when Brandon and Archie devise a plan to force their rival groups, S#arp Attitude and the Hexachords, to bury the hatchet. Nor'easters alums and aca-royalty, Isaac and Shams, help S#arp Attitude perfect their set with some unconventional competition wisdom. In Philly, the perfectionists in Off The Beat struggle with an unexpected flaw in their Quarterfinals set.