Rihanna Rocked Wireless Fest WIth Jay-Z, Justin Timberlake [VIDEO + PHOTO]

Rihanna took the stage to loud cheers from the crowd during Jay-Z and Justine Timberlake performance at Yahoo! Wireless Festival on Sunday in London.

Rihanna hit the stage while Jay-Z was performing their hit collaborative single “Run This Town.”

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RiRi looked stunning as usual dressed in a leather dungaree-style skirt with white top.

The crowd of approximately 60,000 strong erupted when the world’s biggest pop star hit the stage.

Rihanna was among a huge number of celebrities to sound off on Trayvon Martin murder case after George Zimmerman was acquitted of all charges.

Rihanna wireless festival

Justin Timberlake and Jay-Z wireless festival

Rihanna wireless festival 2013