No matter how many times K-pop idols change their hairstyles, concepts, or clothes, there’s one part of their look that will always stay the same: their smile. All different and all unique, no two smiles out there are ever the same. Do you think you could identify these idols based only on the way they smile? Test your skills below!

How did you do? Let us know in the comments!

brookenicole writes from YG’s basement until her (indefinitely) postponed debut. You can find her on Twitter.