updated 10:04 am EDT, Tue August 19, 2014
Elbow, David Gray, Lenny Kravitz, First Aid Kit among names
Apple has added another 21 acts to the list performing at next month's iTunes Festival in London. Some of the better-known additions include Jenny Lewis, Elbow, Paolo Nutini, David Gray, The Script, Jessie Ware, Ryan Adams, First Aid Kit, and Lenny Kravitz. Over 60 acts will be playing in total -- previously-announced performers include Beck, Pharrell Williams, Kylie Minogue, Maroon 5, and Robert Plant.
Concerts will span the whole month of September at London's Roundhouse. Tickets are being given away for free, but only to UK residents and through outlets like radio stations. The rest of the world will be able to stream concerts live and after-the-fact via iTunes, iOS, and the Apple TV.