After its epic run in the summer of 2012, the Under the Influence of Music Tour launches its second incarnation in San Francisco on July 17th. Headlining the tour once again is the man himself, Wiz Khalifa, this time with a new co-conspirator: A$AP Rocky.

As you'll see in the video above, Wiz and Rocky are both fired up for the tour's second leg, which is much bigger and more ambitious than the first. Not only will it feature shows in nearly twice as many cities as last year, but its cavalcade of guest artists has grown to include the likes of B.o.B, Trinidad James, Joey Bada$ & Pro Era, Berner, and Smoke Dza.

Tickets are available through Live Nation, which is also offering fans the "Grass Pass," a special 4-pack of tickets that lets you and your crew enjoy the show together and in style. This is going to be the hottest ticket of the summer, so better get yours now.
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