Last night on the Tonight Show with Jay Leno, Janet Jackson flexed her new Nutrisystem-toned muscles to spank Jay Leno into shape. Plus: David Cross, not one to bite his tongue, slammed his latest installment of the Chipmunks series with a touch of anti-Semitism against a producer (Cross is also Jewish); Mark Wahlberg reenacted the Tom Cruise-jumping-on-Oprah’s-sofa scene; and Channing Tatum had a rough New Year’s tainted with poison ivy, vomit, and mountain lion fears. Watch our compilation to see what you missed.
