How does a Grouch celebrate the holidays? TFK went straight to the most famous grump of all, Oscar the Grouch, of Sesame Street, to find out. The furry green Muppet gave us the scoop on his favorite holiday traditions and treats, and revealed what's on his wish list this Christmas. Watch the video interview above. Tonight, tune in to NBC to watch Oscar, Justin Bieber, Kellie Pickler and other musical guests, on the holiday special, A Michael Bublé Christmas. (Reporting by Vickie An / Videography by Kelli Plasket)