By Leah Ornstein – Radar Style & Beauty Editor

It’s hard to tell these bikini bombshells apart, especially when they are stripped down and wearing next-to-nothing on the beach!

RadarOnline.com has photos of Hollywood’s sexiest and most similar-looking stars, showing off their equally flawless bikini bodies.

Megan Fox is smokin’ hot, but her look isn’t totally unique! The former Transformers star doesn’t just have one bikini twin — but two. Everyone knows that Foxy is constantly compared to big screen bombshell Angelina Jolie, but her less obvious bikini look-a-like is sex tape star and gal pal of the famous (most notably, David Arquette!), the hot-bodied Jasmine Waltz.

PHOTOS: More Bikini Twins!  Stripped Down Stars Who Look Alike

And whenever we see photos of Leighton Meester and Minka Kelly we have to do a double take. The Roommate costars both have hot bodies and flawless, doll-like faces – so much so, that they could totally pass for sisters!

PHOTOS: Sexy Bikini Twins! All The Rest Of Our Fave Bikini Look-A-Likes

It isn’t surprising that Keira Knightley and Natalie Portman compete for the most coveted awards.  Both the sexy thespians have superior skills, smarts and smokin’ hot bods.

PHOTOS: Bikini Wars! Sexy Stars Who Have Shared Lovers

What other bikini look-a-likes are on our Radar? Click here to find out.