Britney Spears is showing fans a part of her they've never seen before - a tiny tattoo on the back of her neck.

The singer showed off her ink in an Instagram post, posing in a bright pink swimsuit with her exposed back facing the camera.

"Hot pink makes my tan pop !!!! [sic]" she wrote, before questioning: "Have you seen the tattoo on the back of my neck before ???? [sic]"

She further explained: "It's Hebrew, it's a language written backwards !!!! It says Mem Hey Shin and means healing !!!! It's my favorite tattoo but ironically you never see it [sic]."