Beyoncé & Blue Ivy JOIN Jay-Z on stage at Yankee Stadium: Beyoncé & Blu Ivy makes a surprise appearance at Jay-Z’s first show night at Yankee Stadium. Beyoncé does her rendition of Jay-Z & Mary J. Blidge’s ‘Cant Knock The Hustle’. Since Mary couldn’t perform with Jay due to her residency, Beyoncé covered for her. Later, Blu Ivy would come out on stage as Jay’s pianist as Jay raps ‘Feelin It’ Jay-Z is performing 3 nights at Yankee Stafium to celebrate the 30 year anniversary of his debut album ‘R