Matt Damon, Bill Murray, Hugh Bonneville and musical guest Paloma Faith were recently on The Graham Norton Show. Part 1, Part 2, Part 3, Part 4. This may possibly be the best episode of this or any talk show that will ever exist.
Now this is a story all about how / My life got flipped turned upside down / Even though I wasn't telling a story in the Red Chair
Will Smith, Gary Barlow (Take That), and the audience of The Graham Norton Show perform the theme song from The Fresh Prince Of Bel-Air". [performance begins about 1m8s into the clip]