For the next hour, the two comedic icons just riffed. On the Oscars and Seth MacFarlane’s performance as host. On Kevin Hart showing up at the Cellar the other night, and his two sold-out concerts last fall at Madison Square Garden. On Prince, who’s supposed to be in the city this coming weekend. On Jay-Z and President Barack Obama, and the sights and sounds of a $20,000-per-plate Obama fund-raiser last year at Jay-Z’s 40/40 Club. On passing on the chance to open for Jay-Z during his sold-out concert run at Barclays Arena in Brooklyn. “I had no material!” Rock demurred. “Neither do I!” Chappelle countered. They joked about eating fast food. And on the prospect of calling up another famous friend for a late-late-night outing to eat spaghetti. Just because it’d be funny to Chappelle to have strangers see a group of famous men (married with children), out late together doing something completely normal and boring. Chappelle convinced Rock to text Jay-Z at around 1:30 a.m. After a lack of a reply, they called Arsenio Hall and left a voice-mail message; then later the same for Lenny Kravitz.“This could be the show,” Chappelle said. “Fireside chats with Chris Rock.”“I’m in,” Rock replied.