Kendrick Lamar has been treating fans to some big surprises on his ‘DAMN.’ tour and last night that trend continued. While he was in Detroit he brought out J. Cole who performed “Deja Vu,” “A Tale of 2 Citiez” and “No Role Modelz.” He said to the crowd, “Detroit, Michigan, can y’all please take a minute, look around this fucking arena where the fucking Pistons play at, and look what Kendrick Lamar has done with this fucking DAMN. album ladies and gentleman.”