Ariana Grande lights up the Met Gala stage! Vogue shared clips of the singer's surprise performance on social media, which included her hits '7 Rings,' 'Into You' and 'we can't be friends (wait for your love).' Ariana opened her set with 'Once Upon a Dream' from the 1959 Disney classic, 'Sleeping Beauty,' in tribute to the gala's theme this year, 'Sleeping Beauties: Reawakening Fashion.'