Will Smith has been very open about his thoughts on a musical comeback in recent weeks, and previously revealed that he was recently in the studio with Kanye West to map some things out. While the results of those sessions have yet to be heard, Will appeared on The Late Show With David Letterman last night to prove that he still has what it takes as a MC, while killing a performance of his '90s hit, "Gettin' Jiggy Wit It." This is already the second time Will has performed on late night TV this month, so maybe, just maybe, that long-awaited musical comeback is actually happening.