The Dartmouth Aires made it into the top three on NBC's "The Sing-Off" Monday night, a group that includes Utahn Nic Chuaqui as a singer and music director. The lone college group left standing will possibly compete in the live finale on Nov. 28 for the Sony recording contract and a $200,000 cash prize, against Pentatonix from Arlington, Texas and Urban Method from Denver, Colo.