CHIMMY is a playful puppy in yellow that represents the BT21 brand's overall image. BTS Jimin created CHIMMY and said that the animal that goes best with BTS is a puppy. We love to hang out, and we're active, which reminds people of puppies. And how can you not love CHIMMY? He is an adorable white puppy with black ears and usually with his pink tongue out and a cute little yellow hoodie. A cute BTS fanart progress bar for YouTube with BT21 CHIMMY.