Ryan Adams, Jessie Ware & More Added to London iTunes Festival

Taylor Hill/WireImage
Ryan Adams performs during the 2014 Newport Folk Festival at Fort Adams State Park on July 25, 2014 in Newport, Rhode Island.

Sam Smith, Maroon 5, 5 Seconds of Summer & more already announced as headliners.

Ryan Adams, Jessie Ware, Lenny Kravitz and another dozen-plus artists have been added to next month's iTunes Festival in London, joining previously announced headliners Maroon 5, Sam Smith and 5 Seconds of Summer.

Sam Smith, 5 Seconds of Summer to Headline iTunes Festival in London

"I'm really excited about my new album, Strut, and playing the festival this year, as well as working with iTunes," Kravitz said in a statement. "Looking forward to seeing everybody at the show next month!"

Elbow, Jenny Lewis and Foxes will also be heading to the Roundhouse in Camden for dates stretching from Sept. 2-27. The other new additions: Clean Bandit, Robin Schulz, Charlie Simpson, Luke Sital-Singh, SOHN, Matthew Koma, Paolo Nutini, David Gray, The Script, Gregory Porter, Eric Whitacre, Rudimental, Jess Glynne, First Aid Kit and MNEK.

The current London iTunes Festival lineup is below, with more acts to be announced soon:

Sept. 2: Beck + Jenny Lewis
Sept. 3: David Guetta + Clean Bandit + Robin Schulz
Sept. 4: 5 Seconds of Summer + Charlie Simpson
Sept. 8: Robert Plant + Luke Sital-Singh
Sept. 9: Sam Smith + SOHN
Sept. 11: Maroon 5 + Matthew Koma
Sept. 12: Elbow
Sept. 13: Paolo Nutini
Sept. 14: David Gray
Sept. 15: The Script + Foxes
Sept. 17: Gregory Porter + Eric Whitacre
Sept. 18: Jessie Ware
Sept. 20: Rudimental + Jess Glynne
Sept. 21: Ryan Adams + First Aid Kit
Sept. 26: Lenny Kravitz
Sept. 27: Kylie + MNEK