have you seen this show?? i can't seem to watch enough of this show The Sing Off. i used to catch So You Think You Can Dance but haven't caught an episode in about two years but now i have a replacement show because these people can SING! i'm even catching-up on past seasons with Hulu and youtube... The Sing Off, like most performance based shows, scours the country in search of the best a cappella groups, ranging in various sizes and ages. it is truly amazing what talented singers can do with their voices! the clip below is from a past season but it's just so good!