A number of new acts have been confirmed for this year's iTunes Festival.

The music company is hosting a free concert every day in September at London's Roundhouse venue.

Newly announced acts to perform at the event include Robin Thicke, who will hit the city on September 28, with John Legend also scheduled to appear on the night.

Arctic Monkeys will headline a show on September 9 - the same day that their new album 'AM' is released.

Sir Elton John meanwhile will perform at the Roundhouse on September 12.

Other acts announced include iconic US indie group Pixies on September 25, who will be supported by No Ceremony.

Previously confirmed names include Jessie J, Queens of the Stone Age and Paramore.