You Won’t Believe These 18 Celebrities are Single

#15 John Mayer

57th GRAMMY Awards - Arrivals

When it comes to dating a bunch of different famous celebrity women, Mayer has a black belt. He has been labelled a womanizer and has had relationships with people including Taylor Swift, Jessica Simpson, Katy Perry and more. But as of right now, it seems he has taken a break from the dating scene to just date himself.