Jay-Z rode the R Train and schmoozed with some straphangers on the way to the Barclays Center tonight and rounded out his week-long series of concerts with a little help from Beyonce.

The eighth concert was broadcast live on Youtube and featured a guest appearance by Beyonce as she helped out her hubby Jay-Z on a few songs, singing “Diva” and “Crazy In Love” early in the night, then returning for final song of the encore – the duet “Young Forever”.

Check out the video of “Young Forever” below and see the full set list for the night over at Brooklyn Vegan.

Jay-Z and Beyonce perform “Young Forever” at Barclays Center via Rick Ross on Youtube