Continuing our ongoing coverage of the Miley Cyrus Twitter Crisis of 2009 (hint: she quit), here's a video from last night's Late Night With Jimmy Fallon in which the host plays dress up as Billy Ray Cyrus to make his own rap video.You'll recall that Miley Cyrus quit Twitter (because her boyfriend told her to, or something). She then made a mock rap video about it. Now, Fallon is making fun of that video, Billy Ray, and Twitter all in one fell swoop. Impressive.