During a recent date of her headlining tour, Taylor Swift brought up-and-coming superstars Echosmith on stage for an electrifying performance of their smash single, “Cool Kids.” While a full video has yet to surface, the quartet offered a brief clip on their Instagram, which you can find below.

Can you believe Echosmith were playing Warped last summer? Sure, they were already on their way to the top before attending punk-rock summer camp, but it's a fun concept to think about.

Read more: Here’s a video of Katy Perry stage diving at Warped Tour

Amazing time!!! We love you Taylor. Thank you for the most incredible night!!!! @taylorswift

A video posted by echosmith (@echosmith) on