Whether or not you're a fan of It's Always Sunny in Philadelphia, this brief promo for the series' upcoming eighth season is 30 seconds well spent. The reason? The sudden introduction of an all-new cast, which now includes Xzibit, Candace Cameron, UFC star Chael Sonnen, a post-Sassypants Haley Joel Osment, and Andrew Dice Clay. Science dictates there's a parallel dimension where that group really is the cast, so watching can and should be considered theoretical research. We'll only truly understand the universe once we observe the outcome of each Dice role.