Drake, Rita Ora, Chance The Rapper and more will perform for New Look Wireless's special 10th birthday show.
The additional show will take place at Finsbury Park on June 28 ahead of this year's main event to celebrate its 10th year.
Drake, who will also headline Wireless the following Friday (July 3), will be joined by Katy B, Public Enemy, Black Star, Raekwon & Ghostface Killah, Big Sean, Kid Ink and others.
The event will mark Ora's only UK festival appearance this summer.
Tickets will go on general sale at 9am tomorrow (April 2) and be priced £69.50.
People who have already purchased tickets for Wireless will be able to get £10 off their ticket until 9am tomorrow.
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New Look Wireless will take place from July 3-5, with other acts including Avicii, Nicki Minaj, Kendrick Lamar and David Guetta.
Watch the music video for Drake's 'Hold On, We're Going Home' below:
