The people listed have demonstrated the ability to do a muscle-up on the rings or straight bar. CONGRATULATIONS!

The muscle-up is a skill that is essentially a pull-up followed by a dip. It is used to take yourself from below a sets of rings or bar to above a set of rings or bar. Many can do a pull-up, and many can do a dip, but transitioning between the two takes a certain level of strength and coordination.

It's said that once you can do one clean muscle-up that there isn't any obstacle that you can't get over, so long as you can get a hand on it.

MUSCLE-UP CLUB!:
Steve Sheffar
Chris Girvan
John Slaughter
Mike Sheffar
Jeff Wybo
Stuart Shillington
Mike Jefferson
Sean Collins
Mike Edwards
Justing Cutler
Joshua Clapdorp
Brad Payne
Luke Amaral
Pellumb Jakupi
Merritt Lymburner
Dave Collie
Andrew Stevens
Dennis Pedersen
John Paczkowski
Oscar Trachmann http://www.youtube.com/watch?v=ulAB6yyTmM8
John Sinclair
Nate Neiuwland
Emily Beers
Matt Peebles
Ryan Frayne
Jennifer Broxterman
Laith Semonian
Sean Sinclair
Dan Logie
Brandon Logie
Kyle Logie
Drew Kivell
Preston Kivell
Tim Tallack
Jacquie Edwards
Melissa Faichuk
Adam Johns
Rob Littlechild
Gary Hunter
Bob Van Houwelingen
Clarke Teeple