Will.i.am has been confirmed as the special guest to Legends of the Summer at Yahoo! Wireless festival featuring Justin Timberlake and Jay-Z on Sunday 14th July.

The festival will take place at Queen Elizabeth Olympic Park in London from Friday 12th until Sunday 14th July.

The acts for the Yahoo! stage have also been announced, with day splits yet to be revealed:

Fazer, Mikky Ekko, Watsky, Mikill Pane, Koan Sound, Giggs, A*M*E, Mat Zo, Flight Facilities, Clean Bandit, Jakwob, Logic, Jacob Plant, P Money, Waka Flocka Flame, Phlo Finister, Drop City Yacht Club, Joel Compass, Charlie Brown

More acts have also been announced across the weekend including Sub Focus, Zane Lowe (DJ Set), Devlin and Mischa B.

The full line-up so far is as follows: