Josh Radnor talks to his doppelgänger, Jimmy, about performing with his new band, Radnor & Lee, why he won't be bursting randomly into song in his new NBC drama Rise and how he educated his young co-stars about the greatness of Rosie Perez. Subscribe NOW to The Tonight Show Starring Jimmy Fallon: bit.ly/1nwT1aN Watch The Tonight Show Starring Jimmy Fallon Weeknights 11:35/10:35c Get more Jimmy Fallon: Follow Jimmy: Twitter.com/JimmyFallon Like Jimmy: Facebook.com/JimmyFallon Get more The Tonight Show Starring Jimmy Fallon: Follow The Tonight Show: Twitter.com/FallonTonight Like The Tonight Show: Facebook.com/FallonTonight The Tonight Show Tumblr: fallontonight.tumblr.com/ Get more NBC: NBC YouTube: bit.ly/1dM1qBH Like NBC: Facebook.com/NBC Follow NBC: Twitter.com/NBC NBC Tumblr: nbctv.tumblr.com/ NBC Google+: plus.google.com/+NBC/posts The Tonight Show Starring Jimmy Fallon features hilarious highlights from the show including: comedy sketches, music parodies, celebrity interviews, ridiculous games, and, of course, Jimmy's Thank You Notes and hashtags! You'll also find behind the scenes videos and other great web exclusives. Josh Radnor Gets Performing Tips from Celebrity Twin, Jimmy Fallon www.youtube.com/fallontonight