Justin Bieber
Credit: Jason Kempin / Getty

It’s no secret that Taylor Swift‘s songs are highly cover-worthy — but her latest cover (short as it may be) comes as somewhat of a surprise: Justin Bieber, ex-boyfriend of Taylor’s ride-or-die BFF, Selena Gomez and fellow super-mega-huge pop star.

The video comes courtesy of Martin Garrix, a DJ and EDM musician who posted a Snapchat of Justin playing the acoustic guitar and singing “I Knew You Were Trouble When You Walked In.”

While it’s only 10 seconds long, it’s still a fun reminder that a) Justin’s actually got a great voice, and b) “Trouble” is probably our favorite song in Taylor’s whole catalog. (It’s hard to pick just one, though!)

The two guys seem to be hanging out in someone’s apartment singing — rather, Justin does the singing and Martin sways the camera in the air.

And after that, refresh your memory with these other great Taylor Swift covers: Charli XCX, “Shake It Off”; Vance Joy, “I Know Places”; this orchestral version of “Bad Blood”; that harp version of “Style”; or this piano/cello version of “Blank Space.” And that’s not even all of them!