Jay-Z and Justin Timberlake are to perform a preview of their Legends of the Summer US tour at a newly announced third day of the Yahoo! Wireless festival in the Olympic Park in July.
Previously it had been announced Timberlake will headline the first night of the event on 12 July, while Jay-Z will headline the next evening.
The third day of Wireless is shaping up to be hip-hop heavy, as joining the line up are A Tribe Called Quest - who will make their first UK appearance for 20 years - Nas, A$AP Rocky and Rizzle Kicks.
Dennis Hone, Chief Executive of London Legacy Development Corporation, said: "It's a credit to Queen Elizabeth Olympic Park that this year's Yahoo! Wireless Festival is the fastest selling in the event's history.
"We are delighted that both Justin Timberlake and Jay Z will be performing a third date here in July with a preview of their Legends of the Summer Tour."
Also confirmed to appear at the Wireless festival are Ke$ha, Wretch 32 and Conor Maynard on Friday, 12 July, and Macklemore and Ryan Lewis, Flux Pavilion and Zedd on Saturday, 13 July.
Tickets available here.