Bikinis leave little to the imagination.

And that goes double when you're trying to hide a tattoo.

Stars go to all kinds of lengths to hide their body ink, but there's not much you can do when you're sporting a teeny weeny bikini.

Check out Mariah Carey's and Jessica Biel's bikini-body tats, and find out what ink other celebs are hiding behind their pants legs and shirt sleeves.

PHOTOS: Celebrity tattoos revealed - by their bikinis!

More Celebrity Bikini Fun

PHOTOS: Over-40 celebrity bikini bodies.

PHOTOS: Stars' favorite 2009 bikini styles.

PHOTOS: Full-figured stars' bikini bodies.

VIDEO: Sports Illustrated swimsuit model Bar Refaeli unveils her "little black bikini."