Watch Taylor Swift Perform 'Girl Crush' Backstage With Little Big Town

Jason Merritt/LP5/Getty Images for TAS
Taylor Swift performs with the band Little Big Town during The 1989 World Tour live at Heinz Field on June 6, 2015 in Pittsburgh, Pennsylvania.  

Taylor Swift is remembering to have some serious fun while on her 1989 World Tour.

Over the weekend, Little Big Town joined her onstage for her show in Pittsburgh, and Swift also uploaded a video to her Instagram of the group singing "Girl Crush" backstage with her -- while Swift helpfully danced along, of course. 

"When Little Big Town is singing Girl Crush in your dressing room, there is no other option but interpretive dance," Swift captioned the below video. 

She's not wrong.