Nicki Minaj surprised her Miami Barbz by bringing out Lil Wayne, Birdman, DJ Khaled, and Mack Maine. Weezy performed "Take It To The Head" and his verse on "Pop That". Just two days prior, Nicki surprised her Atlanta audience by bringing out T.I., Young Jeezy and Monica during her concert. The Pink Friday tour is on from now until August 12th. You can also catch Nicki on the 'Today Show' on Friday, August 14th.