The K-pop idol takes Bilboard to Seoul's Noryangjin Fisheries Wholesale Market. SEVENTEEN at Coachella, when? In this episode of Billboard ‘s Takes Us Out , JOSHUA speaks with host Tetris Kelly about touring with the full SEVENTEEN unit, wanting to do Coachella, getting into acting and much more over a meal of Korean seafood at Noryangjin Fisheries Wholesale Market, a 24-hour fish market in Seoul. “It’s very new, but I’m learning new things,” JOSHUA shares of trying his hand at acting. “It’s helping me express my emotions more because I feel most of the time I might be a little closed off … I’m having a lot of fun with it.” Acting isn’t the only new venture JOSHUA is taking on lately. The K-pop idol shares that he is producing solo music, and with that, he is getting into songwriting, something he historically did not have time to do before. “I’m trying to do more of that these days,” JOSHUA says of songwriting.…