Last night on Late Show With David Letterman, Michael J. Fox plugs the 1,500 new, cleverly conceptualized, light-up 2011 Nike Mags, the Back to the Future sneakers retailing on eBay, the proceeds of which fund the Michael J. Fox Foundation for Parkinson's Research. Plus: Khloe Kardashian received a poorly orchestrated prank call from husband Lamar Odom, who is currently sidelined by the NBA lockout and has the time for such antics; Jimmy Kimmel dissuades Ron Artest, an admitted aficionado of Celine Dion, from getting a tattoo in homage to the Titanic song; and Charlie Day, while filming for the upcoming season of It's Always Sunny in Philadelphia, was surprised to meet some Jersey Shore locals who were "far, far, far worse" than the cast of the eponymous show. Watch our compilation to see what you missed.