We've had a few of these 'body builder does X' type films on here before. This is a great two parter which doubles up as a tutorial for those of you aspiring to do a muscle up:
(Part 1 of 2): http://youtu.be/KJx7wjqjPPg
Me? I can pull off multiple MUs on both bar and rings. A reverse grip MU on the bar still evades me though!