Taylor Swift and Harry Styles are an item now, but there's a special One Direction fan who isn't taking the news very well:  It's Hailie Scott Mathers, (rapper) Eminem's teenage daughter.

Hailie Tweeted: "If @taylorswift13 is really dating the love of my life @Harry_Styles I will not be happy. Dear @taylorswift13, please stop whoring around with every guy you see. We all know you're only doing it so you can make another album."

Taylor Swift actually responded to Hailie and wrote: "y u jelly tho."