Someone was not happy with just watching one video at a time, so he created Youtube Doubler.. the idea is to play two youtube videos at the same time and try to create an ellaborate joke or so.

Youtube Doubler

The double video i brought to you is a fat guy complaining about something that happened on the supermarket mixed with a hip hop instrumental track. The result is a great badass hip hop tune.
I enjoy the fact this guy is really pissed off, goes really great with the song
Check it out…

Fat guy rapping using Youtube Doubler