Sometimes a song doesn’t need to overcomplicate things to get your attention. On “Annyeonghaseyo,” Japanese/Korean rapper Yuki Chiba teams with Korean producer Lil Moshpit for a cross-cultural collaboration built around one of the most universally useful words: hello. Over Lil Moshpit’s stripped-down, bouncing production, Yuki turns the familiar Korean greeting into an infectious refrain, weaving in playful references to Korean culture along the way.