Will Smith can now add stand-up comedian to his long list of talents. On Wednesday night, the 49-year-old actor, producer and rapper was one of the many stars who took the stage at the Peppermint Club in Los Angeles during a comedy show hosted by Dave Chappelle. In addition to Smith and Chappelle, Katt Williams, Michelle Wolf, Jon Stewart, LeBron James, Michael Che and John Mayer were among the other celebs in attendance at the show. Smith's wife Jada Pinkett Smith and daughter Willow Smith were also at the show on Wednesday, watching him perform from the audience. "Will Smith did a stand-up for the first time ever, he'd never done it and that was his very first time," a source tells E! News. "He...