Phone calls are definitely important to people, especially when you've called someone several times and never get an answer. And apparently that's what bugged actor Robert Deniro. He attended a celebrity birthday bash and Jay-Z was there as well. When Jay came over to say hey to Robert, the actor got pissed. Robert had been phoning Jay-Z for a while over a song Jay said he would write for the Tribeca Film Fest. Well Jay hasn't returned any of the calls and Robert called him out on that. Word is, he even called Jay-Z disrespectful. When someone calls you six times, you return a call Jay!
