The iTunes Festival returns this September for 30 nights of free gigs at the Roundhouse.

Justin Timberlake, Queens of the Stone Age, Primal Scream, Jake Bugg, Phoenix, Jessie J, Jack Johnson and 30 Seconds to Mars are among this year’s headliners and new artists are being announced on a regular basis.

Enter to win tickets on iTunes or via the official iTunes Festival app.

Don’t worry if you can’t join us in person, you’ll be able to stream the shows live or afterward on your computer with iTunes; on your iPhone, iPad or iPod touch via the official app; or on your big screen with Apple TV.

Download the free app to enter to win tickets and get the latest artist announcements. In September, you’ll also be able to watch live and recorded iTunes Festival performances via the app

Follow iTunes Festival on Twitter @“iTunesFestival(Twitter)”: and join the conversation using #iTunesFestival. Like iTunes on Facebook.