(Getty Images)Camden, London's Roundhouse is the place to be this September, as the annual iTunes Festival is bringing in over 60 acts including Queens of the Stone Age, Phoenix, Jack Johnson, 30 Seconds to Mars, and Jessie J. Oh, and this guy named Justin Timberlake.The iTunes Festival first launched at London's Institute of Contemporary Arts in 2007, and has previously featured Paul McCartney, Amy Winehouse, Adele, Coldplay, and many more. Tickets to the free shows can be won through iTunes...
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