I love the NBC show, The Sing Off. It's got it all - great music, compassionate knowledgeable judges, and did I say, great music? I have a few favs... and two of them are finalists - Pentatonix and Urban Method. I also liked Delilah who were eliminated earlier.
If you haven't watched the show, go to Hulu and watch it. It really is a great show and I highly, highly recommend it.
I am routing for Pentatonix... They get a huge sound with just 5 voices arranged very, very well. The rhythm section is HUGE and just plain solid. The beat box guy - Kevin Olusola - also plays piano, cello, and sax and is evidently quite accomplished on each. I googled him the other day and found this incredible video of him playing cello and beat boxing... just amazing.
and here's Pentatonix