http://youtu.be/QMkb5NClSm0
J Cole had a special show at Madison Square Garden called What Dreams Come True and surprised the crowd by bringing out Jay-Z and Kendrick Lamar. Jay Z performed PSA and FuckWithMeYouKnowIGotIt and presented J Cole with an original Roc-A-Fella chain. Kendrick performed Forbidden Fruit and Backseat Freestyle.
http://youtu.be/WL3-pjVop-g