How funny is this: Rumor has it that the American Idol producers are cooking up a live a capella show due to the success of 'Pitch Perfect'. Calling NBC: it's time to revive 'The Sing Off'!

Speaking of 'The Sing Off', the season 3 winner Pentatonix just released a fantabulous new video called 'The Evolution of Music'. I absolutely LOVE it.... though they left out most of my favorite songs. Watch in awe: