View the original article at: http://www.countryweekly.com/news/keith-urban-jams-gregg-allman-at-ryman-show
June 29, 2013 
Keith Urban is becoming the guest star of choice to take the stage with iconic rockers. Recently, Keith played a few numbers with The Rolling Stones in concert, and Friday night (June 28), Keith surprised the packed house at the Ryman Auditorium in Nashville with his appearance at the Gregg Allman concert.
Gregg and his top-notch band played iconic numbers like Gregg’s solo hit “I’m No Angel” and “Statesboro Blues,” the standard made famous by The Allman Brothers Band, before fans caught a glimpse of an extra musician taking the stage. When they realized that it was none other than Keith Urban, the crowd erupted into cheers and applause. Keith joined Gregg’s band on the T-Bone Walker nugget “Stormy Monday” and another tune as Gregg smiled in approval.
Keith came back for the encore, after a somewhat lengthy wait. Keith again showed his affinity for playing straight-up blues as he swapped blistering licks with Gregg’s band guitarist Scott Sharrard and Gregg’s son Devon Allman on “One Way Out.” The perfect end to an outstanding show.