The Chainsmokers are coming off a whirlwind summer of success, from topping Billboard’s Hot 100 with “Closer” and going Platinum, to their heart-stopping performance at the VMAs. Now, The Chainsmokers have something massive in the works, and it’s rumored to be their biggest hit yet.

Discovered via Snapchat, The Chainsmokers recently uploaded two videos of them in the studio with Coldplay’s frontman and vocalist Chris Martin! Though Martin isn’t mentioned by name, his voice is easily recognizable. It’s still unclear if the crossover track will be a Chainsmokers or Coldplay claimed anthem, but it is absolutely certain that this legendary collaboration is in the works. Be still our beating hearts!

Check out their snaps below!