Mumford & Sons, Ellie Goulding and Carrie Underwood have joined the line-up for this year's Apple Music Festival, according to Gigwise.

The event series, which is the new incarnation of iTunes Festival, takes place at Camden's Roundhouse from September 19-28. One Direction, Florence + The Machine, The Weeknd and The Chemical Brothers are amongst the artists already announced.

It's now been revealed that Ellie Goulding will kick off proceedings on 19 September, while Carrie Underwood will follow a few days later on 21 September, and Mumford & Sons will headline the penultimate night with support from Jack Garratt.