John Mayer & Keith Urban: Crossroads Guitar Festival Performers!

John Mayer shows off his guitar playing skills while performing on stage during the 2013 Crossroads Guitar Festival at Madison Square Garden on Friday (April 12) in New York City.

The 35-year-old musician was joined on stage by country star and American Idol judge Keith Urban.

PHOTOS: Check out the latest pics of John Mayer

In case you missed it, more tickets for John‘s tour are now on sale for his stops in Raleigh, Charlotte, and Virginia Beach!

20+ pictures inside of John Mayer and Keith Urban performing together at the 2013 Crossroads Guitar Festival…