Pauly D and Justin Bieber probably have the two best heads of hair in Hollywood right now, so we're not surprised that they decided to swap 'dos after running into each other outside of Koi restaurant in L.A. Pauly loved The Bieb cut so much, that he even went ahead and got the newest Bieber style a few days later! Check out Pauly rocking Bieber's cut and vice-versa.