Carrie Underwood surprises fans at Luke Bryan tour launch

Country star Luke Bryan kicked off his new tour in Nashville, Tennessee over the weekend (05-07May17) with surprise performances from Carrie Underwood, Cole Swindell, and Karen Fairchild.

The Crash My Party hitmaker launched the Huntin', Fishin' and Lovin' Every Day Tour on Friday (05May17) with a two-night stint at Bridgestone Arena, and he treated fans to an unannounced duet with Karen on her band Little Big Town's chart smash Girl Crush. They also delivered a rendition of their collaboration Home Alone Tonight.

Luke followed up the opening night's surprise with a double delight on Saturday (06May17), when he invited Carrie to join him for a cover of Randy Travis' I Told You So, as well as a performance of Bryan's Play It Again.

But Carrie wasn't Luke's only special guest - he also joined forces with Cole to belt out Roller Coaster and his Florida Georgia Line track This Is How We Roll, both of which Swindell co-wrote.

Bryan continues his Huntin', Fishin' and Lovin' Every Day Tour in Bristow, Virginia on 12 May (17).