Justin Timberlake, Jessie J, Thirty Seconds to Mars, and Jack Johnson are among the main acts to headline this September’s iTunes festival, with 

Over 60 performers will perform at the month-long event which takes place over 30 straight days in the Roundhouse, a converted railway engine storage shed.

Tickets are completely free, and although you won’t have to dip into your funds to enjoy it, the tickets are only available through competitions organised by Apple on their Festival app in US, Australia, Brazil, Canada, Europe, Japan and Mexico.

And if you don’t get a ticket? You’ll still be able to watch the entire event streamed live on iOS devices.