The big show usually opens with a big song, but not this year. Instead, Sunday night's Grammy Awards began with the evening's host, comedian Trevor Noah, strolling onto a cozy sound stage, trading hellos with the night's performers as if introducing guests at a house party. Then, heartthrob-turned-lust-object Harry Styles gave an intimate rendition of a huge hit, "Watermelon Sugar," wearing a leather jacket and a boa made of Muppet that felt close enough to touch.