I have to admit "The Final Countdown" by Europe is one of my guilty pleasures.
What do you get when you combine a piano, a flute, and beatboxing?
David Fonseca carols "Last Christmas" with himself.
Scott Dunbar a one man band, plays a spectacular cover of 'Billie Jean'. It helps that unlike other one man bands he doesn't use a kazoo and unlike other singers doesn't use Auto-Tune.