UFC champ Jon Jones scores "The Tonight Show with Jay Leno" appearance by MMAjunkie.com Staff on Mar 21, 2011 at 4:10 pm ET Where's Ed McMahon when you need him? While the UFC's new light heavyweight champ won't get the experience of longtime announcer McMahon's signature, "Here's Johnny," introduction, Jon Jones is heading to "The Tonight Show." UFC president Dana White today announced via Twitter that Jones will appear on Thursday night's edition of the 67-year-old NBC franchise.