The first time I remember hearing about "looping" technology for music, I was in college. A popular musical artist, at the time, was on stage in our university gymnasium and looped his voice to perform a song. My fellow students had begun screaming at him calling him a lip-sync artist before he screamed profanities back at them and tried to show them how it worked.
Years later...what once seemed like either lip-syncing or black magic is now something everyone can do with just the tap of a finger (and some musical talent). It brings a whole new meaning to the term "one man band."