Jay-Z Made in America Festival: Pearl Jam Performs '99 Problems' [VIDEO]

Rapper Jay-Z joined rockers Pearl Jam onstage with a performance of his hit track off of "The Black Album" - "99 Problems" - to close out this past weekend's Made in America Festival.

After an amazing two-hour long set in Philadelphia, Pearl Jam welcomed Jay-Z (founder and organizer of the Budweiser-sponsored Made in America Festival) onstage for a final encore on Sunday. Check out the performance below:

Other notable acts throughout the festival included: Run DMC (who hadn't performed together in over a decade), Frank Ocean, Skrillex, Drake, and Santigold.