In Rihanna's hot new vid, "Rockstar 101", she does a pretty mean Slash impression. Who knew RiRi would make a hot old ax man? Or as "flattered" Slash himself told MTV, "The video is way better with her being me than with me being me ... it brings an element of sexuality to it that I probably wouldn't have been capable of." I dunno, Slash, I've never seen you in a onesie! But Rihanna and Slash aren't the only famous couple that share hairdos, although their matchy-matchy-ness was intentional. Check out some famous rocker dudes and celeb ladies who accidentally share hilariously close haircuts.