Justin Bieber stopped by Jimmy Fallon [1] to chat about his emotional moment at the VMAs [2], but his guest stop on The Tonight Show wasn't all about his tears. Bieber talked about his huge Summer jam "Where Are Ü Now" [3] and he explained how he and Skrillex got that weird sound — you know the one! It's known as the "dolphin sound," and surprise: it's Bieber's voice. He also sang the song as a country song, and it's both hilarious and kinda good.