If you're wondering why Taylor Swift looks like a baby; this photo was taken back in 2009 - which Taylor and Perry were presumably put in contact with each other via their reps to go have dinner because it would create this photo op. Or one sent the other one flowers. Or they were actual friends. Either way, 2009 was a long time ago.

Taylor Swift hugs Katy Perry as they leave Hakkasan restaurant after having dinner together.London, England - 23.08.09

Perry, who is rumoured to be embroiled in some sort of feud with the 24-year-old singer, says being famous is like being on a soap opera and hinted she doesn't think the 'Black Space' singer is perfect in real life. Shocker.

She said: "You've got to name someone the villain, someone the princess, someone's the mom [and] the dad type - you know there always have to be characters. As pop figures, we're all characters. And the media uses that. Who is the sweetheart, who is the villain? You know. Taylor's the sweetheart. Kanye's the villain. That's the narrative."

The duo reportedly fell out last year when Taylor revealed one of her tracks Bad Blood was written about another famous singer, calling her a "straight-up enemy."

While she didn't name Katy, the latter fuelled rumours the comments were about her when she tweeted the next day: "Watch out for the Regina George in sheep's clothing," That's a Mean Girls reference, for those of you who've managed to escape Lindsay Lohan's seminal film.

Asked about the tension between them recently, Katy would only say: "If somebody is trying to defame my character, you're going to hear about it."

Meanwhile, the 30-year-old star admits being a pop star is a lot harder than she dreamed it would be and she isn't surprised Britney Spears shaved her head during her breakdown in 2007.

She told the March issue of Elle: "It is a hundred times harder a dream than the dream that I dreamt when I was nine. You think you signed up for one thing, but you automatically sign up for a hundred others. And that is why you see people shaving their f**king heads."