Jenna Dewan stopped by The Tonight Show Starring Jimmy Fallon on Tuesday night to promote the hit NBC dance competition World of Dance [1]. Jenna, a trained dancer who gained fame after starring in Step Up with ex-husband Channing Tatum [2] and working with Justin Timberlake [3] and Janet Jackson [4], is a judge on the show along with Jennifer Lopez [5] and Derek Hough. During her interview with Jimmy, Jenna talked about her time as a backup dancer for Janet, during which she learned the iconic choreography for "Rhythm Nation." [6] The actress then attempted to teach Jimmy the moves, all while in high heels! Watch the video above, starting at 4:45, to see her impressive lesson.