Rihanna Rocks Out with Jay-Z & Justin Timberlake

Rihanna Rocks Out with Jay-Z & Justin Timberlake

Putting on one of the hottest shows of the summer, Rihanna took the stage at the Yahoo Wireless Festival on Sunday evening (July 14).

The We Found Love songstress was joined by Jay-Z and Justin Timberlake for the grand finale performance at the Queen Elizabeth Olympic Park in Stratford, East London, and the packed audience went wild.

One concertgoer told press, No-one was expecting it at all. The crowd was absolutely loving it and the atmosphere was electric.

Ri-Ri also posted a photo of her new diamond grill to her Instagram account, along with the caption, Im an outlaw b***h!!