With all the secret shows, special guests and surprise announcements that come with each year's South by Southwest festival, it must be tough for performers and promoters to reveal something worth saying "wow" about.  But Yahoo! may have done just that, announcing its massive On the Road tour, which will include 32 acts, including Jay-Z, Justin Timberlake, Frank Ocean, Kendrick Lamar, Miguel, A$AP Rocky and more, according to SPIN.com. 

Obviously, not every artist will be hitting the stage for each show on the 21-city tour, which will spread across the U.S. and Europe.  The full schedule hasn't been released yet, but things are set to get underway May 3 in New York City, wrapping up with the three-day Wireless Festival in London, July 12-14, according to SPIN.

Jay, Justin, Frank, Kendrick, Miguel and A$AP Rocky are already confirmed for the jam-packed Wireless Fest, which will also include sets from Nas, Trey Songz, Snoop Lion, Emeli Sande, John Legend and A Tribe Called Quest.  Tickets are on sale now, and more guests will be announced.

Here are the Yahoo! On the Road tour dates:

5/3 -- New York, NY
5/4 -- Philadelphia, PA
5/5 -- Washington, D.C.
5/7 -- Columbus, OH
5/9 -- Detroit, MI
5/11 -- Chicago, IL
5/13 -- Madison, WI
5/15 -- St. Louis, MO
5/18 -- Houston, TX
5/20 -- Dallas, Ft. Worth, TX
5/23 -- Denver, CO
5/26 -- Seattle, WA
5/28 -- Boise, ID
5/31 -- San Francisco, CA
6/11 -- Berlin, Germany
6/13 -- Munich, Germany
6/18-19 -- Cannes, France
6/21 -- Milan, Italy
6/29 -- Madrid, Spain
6/3 -- Paris, France
6/9-6/14 -- London, U.K.

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