It takes a truly over-the-top look for a celebrity Halloween costume photo shoot to stop me mid-scroll on Instagram. But barely halfway into the day on Oct. 31, Elsa Hosk won my superlative for "Most ...

"The people's princess," the Swedish supermodel said about her outfit Elsa Hosk/Instagram; Tim Graham Photo Library via Getty Elsa Hosk had a total princess moment on Halloween by paying homage to one ...

Princess Diana's niece, Lady Kitty Spencer, shared a photograph of her toddler daughter, Athena, wearing a dress with a statement rectangular collar, just like one Diana wore in 1984.

It takes a truly over-the-top look for a celebrity Halloween costume photo shoot to stop me mid-scroll on Instagram. But barely halfway into the day on Oct. 31, Elsa Hosk won my superlative for "Most ...