Michelle Obama will join Jimmy Fallon on February 20Michelle Obama during his premiere week as the new Tonight Show host. This isn’t Obama’s first visit with Fallon. She first appeared on Late Night in 2012 when she joined Fallon in a comedy sketch to mark the second anniversay of her Let’s Move initiative. She guested again in February 2013 to mark the initiative’s third anniversary. No stranger to the late night talk show circuit, Obama also has appeared on The Tonight Show With Jay Leno and Late Show With David Letterman.