Will Smith commemorated his 100th Instagram post by doing something on his bucket list: taking salsa lessons from the master himself, Marc Anthony. The pair were on a boat in Miami over the weekend when the impromptu teaching moment took place. While the two danced along to Marc's "Vivir Mi Vida," the singer gave Will pointers on his moves. According to Marc, it's all about moving your feet side to side and holding your pants up. Watch the hilarious video above, then relive Will's epic dance moves on Fresh Prince of Bel-Air.