Ballet flats are so last season, according to Olivia Rodrigo. After arriving back in New York City from her trip to Los Angeles for the Grammys, the singer dressed up in the ultimate ballerina dress.

When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: Getty Images Ever since I hit "Add to Cart" on my Miu Miu ballet flats two years ago, I ...