The 21-year-old singer joined comedian Kathy Griffin on the show, along with Newt Gingrich.
Demi announced tour dates for her highly anticipated 2014 Neon Lights Tour earlier this week. Little Mix, Fifth Harmony AND Cher Lloyd will be joining her, too… talk about girl power!! To see if the Neon Lights Tour hits your city, check the dates HERE. Tickets go on sale this weekend.
Photos and videos from Demi‘s The Tonight Show with Jay Leno appearance below. Do YOU like Demi‘s new hair?
Photos: NBC Photo Bank via Getty Images