Justin Bieber and his faint moustache kicked off his Grammys performance with an acoustic rendition of “Love Yourself,†which would have been very romantic for your local tween until they learned that the lyrics are actually a diss. But wait! Then Bieber dove into a performance of “Where Are Ü Now†with Skrillex and Diplo, which was baked full of that EDM-MDMA goodness.