Akon arrives for the Grammy Awards in this Feb. 11, 2007, file photo in Los Angeles. Police have filed several charges against hip-hop star Akon for tossing a teenager off the stage onto another spectator who said she suffered a concussion as a result. Akon faces criminal charges after a fan said she suffered a concussion when the hip-hop star tossed a teenager off the stage and onto her in the concert crowd, police said Thursday.