[Watch] Rihanna x Jay-Z - "Run This Town" Live at the Izod Center, New Jersey)

Earlier in the week we got to see Rihanna bring out a surprise guest at her New York stop off during her Loud Tour. That guest was Kanye West, now just days later, Ri has pulled out all the stops again and surprised fans at the New Jersey show with Jay-Z joining her on stage for a performance of "Run This Town". Check it out at the top and thanks to Hypetrak for the heads up.