You know you're a '90s kid if you can still recite all of the lyrics to "Under the Sea" like it's 1989. And if you've done so, then do not pretend you didn't drape a red T-shirt around your head as an impromptu Ariel wig at some point in time. Even though we'll never turn down a Little Mermaid binge sesh, we've got some new real-life mermaids to look to for hair inspiration these days.