Did they coordinate these ensembles beforehand?! Or was this just a happy coincidence?

Hailey Baldwin and Charlotte McKinney put their famous assets on display in jean outfits last night for the Guess Dare fragrance launch, and we can't decide who looks hotter! The Burger King commercial bombshell was showing major cleavage, but there's something about Hails' skin tight onesie that appeals to us more.

We wonder if Justin Bieber sees these pix and kicks himself for letting her go? Also, remember when Hailey and Drake when on a date?! What happened with that? Is the blonde beauty secretly seeing Drizzy, or was that just a one time deal? We need answers!