Cee-Lo Green, Big Sean and The Black Keys are a few of the acts slated to perform at the 2011 Virgin Mobile FreeFest, taking place on September 10th at the Merriweather Post Pavilion in Columbia, Maryland.

Additional performers on the bill include Deadmau5, TV on the Radio, Patti Smith, Grace Potter & the Nocturnals, James Murphy, Calvin Harris, !!!, Teddybears, Empire of the Sun, Cut Copy and more.

Tickets for the free event will be available beginning on July 15th via Virgin Mobile LIVE’s Facebook page, where patrons must like the page to get complementary access.

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