It was already announced that Justin Timberlake and Jay-Z were headlining separate dates of London's Wireless Festival, but that was before they announced their Legends of the Summer tour. Now they'll kick off their U.S. tour with a special joint performance at the Yahoo! Wireless Festival on July 14, joined by other acts like Nas and A$AP Rocky on the final day of music in London.

Yahoo also announced their On the Road concert series which will hit 14 cities in the U.S. between May 3 and May 31 followed by seven cities in Europe between June 11 and July 14, culminating in the JT and HOV joint performance at the Wireless Fest in London.

According to Hip-Hop Wired, acts like fun.,  the Lumineers, Macklemore & Ryan Lewis, Kendrick Lamar, J. Cole, Imagine Dragons and Owl City have all signed on to take part in this summer-long concert series. The one-of-a-kind festival is being touted as, "a daily mobile entertainment and innovation festival this spring/summer featuring the world's hottest bands, comedians, and surprise guests." Plus, their website says there's going to be a yodeler. Yes, you read that correctly!

Oh boy, this summer's festival season is shaping up to be sizzlin' hot!

On the Road with Yahoo! Tour Dates:

5/3 -- New York, N.Y.
5/4 -- Philadelphia, Penn.
5/5 -- Washington D.C.
5/7 -- Columbus, Ohio
5/9 -- Detroit, Mich.
5/11 -- Chicago, Ill.
5/13 -- Madison, Wis.
5/15 -- St. Louis, Mo.
5/18 -- Houston, Tex.
5/20 -- Dallas, Tex.
5/23 -- Denver, Colo.
5/26 -- Seattle, Wash.
5/28 -- Boise, Idaho
5/31 -- San Franciso, Calif.
6/11 -- Berlin, Germany
6/13 -- Munich, Germany
6/18 -- Cannes, France
6/19 -- Cannes, France
6/12 -- Milan, Italy
6/29 -- Madrid, Spain
7/3 -- Paris, France
7/9 -- London, U.K.
7/10 -- London, U.K.
7/11 -- London, U.K.
7/12 -- London, U.K.
7/13 -- London, U.K.
7/14 -- London, U.K.

Watch the Justin Timberlake 'Suit & Tie' Video Feat. Jay-Z

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