It's T-Max performing "Paradise" for a radio show. And because the BOF cast were currently on a break from filming, Kim Joon was able to join his groupmates for said guesting. He looks tired (notice the yawn?), he even sounds hoarse in those two lines he sang from the song. But those lines were still music to my ears. I guess I've finally found a new Asian heartthrob to fangirl after Ken Zhu in 2003.