There has been a lot of buzz around Pentatonix and most of their concerts are sold out fast. So what should I add? They have a great sound and a huge repertoire and here I post one of the videos that I find most touching. Decide yourself!
Van Canto's hero metal a capella is one of the finest and most original a capella styles out there. This video is an example of their repertoire of own compositions but they feature some well known metal covers too.
Kurt Schneider excelently presents us some Michael Jackson favorites and he really knows how to blend them all together in a great final. If you want to try it out he even included the score in his video links :)
Oh yeah, sing along with all the dance songs from your youth and all the sweet memories keep coming back! Local Vocal makes this possible with their impressive medley from the 90s.