'It's Always Sunny in Philadelphia' 100th Episode Sneak Peek [VIDEOS]: The IASIP Gang Stops By 'Conan' to Premiere New 2013 Season 9 Footage

Last night on TBS's late night talk show Conan, the guys from It's Always Sunny in Philadelphia debuted a special sneak peek clip of the series' 100^th episode. Rob McElhenney, Charlie Day and Glenn Howerton also spoke with O'Brien about other aspects of the show including sexuality, how their characters are devolving and Charlie putting underwear on Danny DeVito. Check out the interview and the sneak peek clip right here!

First off, here is the sneak peek at the 100^th episode (which took the guys nine years to get to, by the way) of It's Always Sunny in Philadelphia. Day explains the plot of the episode involving a convenience store heist of sorts. In this sneak peek clip, we get a good look at what Mac thinks would happen if he intervened in the robbery and then we see his own fabulous version of heaven:

What did you think of this sneak peek clip for the 100^th episode? Has the gang gone all out for the milestone episode?

The creators of the show also spoke to Conan about turning Howerton's character Dennis into a complete sociopath over the years and doing the same with Charlie, only making him much more dumb as time went on:

There was also a little discussion about how everybody is most likely a little gay. Even Andy Richter and Conan. Check out a clip from that part of the interview right here:

In fact, Howerton explained the "Gay Spectrum" referenced in the previous clip on 2011 interview with Conan. Check that out here ... for context: