Justin Bieber made a surprise and seriously unconventional return to the Grammy stage last night, leaving people scratching their heads — and doing double takes. Bieber performed shirtless and in gym shorts, marking his first Grammys performance in four years. Inside LA’s Crypto.com Arena, Bieber delivered a stripped-down, emotional rendition of his song “Yukon,” looping electric guitar and drum samples for a raw, minimalist set. He’s previously said the song was inspired by his wife, Hailey Bieber, and cameras kept cutting to her in the audience as she smiled, cheered, and looked very much like a proud spouse.