Keith Urban Performs ‘Teenage Dream’ With the Band Perry

Taylor Swift isn't the only country superstar bringing celebrity friends on stage for impromptu performances. During his recent show in Regina, Saskatchewan, Canada, Keith Urban invited fellow country superstars the Band Perry onstage for a surprise performance of Katy Perry's No. 1 smash, 'Teenage Dream.' (Watch a fan's video of their performance below.)

"The beautiful thing about playing live is that everybody is in that moment, singing along," Keith tells The Boot of his passion for touring. "There are total strangers singing with total strangers, the same song. It doesn't matter how many people, whether it's five or 50,000, it's people connecting and being in the moment. That's what it's all about."

Though Keith is no stranger to headlining his own tour, the Band Perry recently embarked on their very own solo outing. In between dates with Keith and Reba, the sibling trio launched their Purveyors of Performance headlining tour, a 75-date trek stretching into 2012.

"It has always been our dream to play country music," the band explains. "We've been on the road as a family band for thirteen years and experienced the intimacy of theaters, the energy of county fairs and the joy of connecting with new faces as we support these amazing artists at arenas and amphitheaters. Artists like Tim McGraw, Keith Urban and Reba were the ones who originally inspired us to dream big ... now they have helped our dreams come true. We couldn't be more grateful to them or excited about the future."

Click here to view Keith's entire tour schedule, and here for the Band Perry's.