Come down the fashion rabbit hole and take a peek inside the closets and shopping carts of the world’s most stylish people.

Moo Deng, Thailand’s baby pygmy hippo from that inspired a Saturday Night Live character and thousands of memes, has begun her four-day birthday celebration at Khao Kheow Open Zoo.

The original and probably the most scandalous example is Richard Burton and Elizabeth Taylor—but there have been plenty of ...