More #applemusicfestival announcements! @MumfordAndSons, @CarrieUnderwood & @EllieGoulding! http://t.co/qffJhZK5Fk pic.twitter.com/mUgq6MP9Xo— Apple Music (@AppleMusic) September 8, 2015 Apple has announced more headliners for its Apple Music Festival, including Carrie Underwood, Mumford & Sons and Ellie Goulding. Goulding will open the festival on Sept. 19 at London’s Roundhouse, and Underwood will become the first country star to…
