Taylor Swift thrilled fans at her Nashville concerts by inviting Hayley Williams, Tim McGraw and Kenny Chesney on stage for duets this weekend.

The "Love Story" hitmaker brought her Speak Now Tour to her Tennessee hometown for two sold-out gigs at the Bridgestone Arena.

On Friday, Swift introduced her close pal, Paramore frontwoman Williams, to the stage to join her for a version of "That's What You Get," and later closed the show by singing "Bleed Red" with Ronnie Dunn.

In a post on her Twitter.com page after the opening gig, Swift wrote, "Nashville, night one - what a beautiful crowd! And thank you to (Williams) and Ronnie Dunn for coming out and singing/being awesome."

Swift had more surprises in store on Saturday - her guests included McGraw, Chesney and Andy Grammer.

She later 'Tweeted', "Thank you Nashville for an unforgettable night. Thank you Tim McGraw, Kenny Chesney, and Andy Grammer for joining me onstage! That was crazy!"