A total of 20 mixed martial arts (MMA) fighters stripped down to their skivvies earlier today (May 31, 2012) to see if they were lean enough to qualify for their respective weight classes as part of the Ultimate Fighting Championship (UFC) event that takes place tomorrow night (June 1, 2012) in Las Vegas, Nevada.

The cast and crew of The Ultimate Fighter (TUF) 15: "Live" slithered into "The Pearl" at the Palms Casino Resort for the official weigh in event, featuring a pair of top Welterweight number contenders, Jake Ellenberger vs. Martin Kampmann, in the main event, as well as the finals of the show's 16-man Lightweight tournament between Michael Chiesa vs. Al Iaquinta.

What happened when drawers were dropped?

That's what the above video (13-minute mark) is for, Maniacs, but if you can't watch the replay or just want a quick look at what everyone weighed, head on over to our official TUF 15 Finale weigh in results thread right here. And be sure to check out the final pre-fight staredown pics right here.