Rob Gronkowski Attended a Playboy Party Wearing a Vest and Tie Sans ShirtBy Stephen Douglas | Apr 3, 2012None[Playboy, @jaimeedmuondson]Previously: Rob Gronkowski Enlists His Meathead Friends to Get on the Cover of Madden ’13 Previously: Rob Gronkowski In Zubaz Is The King of the Meatheads Previously: Rob Gronkowski Spiked a Puck at a Minor League Hockey Game Previously: Rob Gronkowski Dancing Wildly at a Super Bowl Party