Ed Sheeran teases Taylor Swift collaboration

Ed Sheeran says another collaboration with Taylor Swift will "definitely" happen.

The 'Galway Girl' hitmaker promised fans he will be hitting the studio with the 'Shake It Off' singer again, following their impressive 2013 hit 'Everything Has Changed'.

However, Ed wouldn't be drawn on an exact date, and when asked by E! News at the iHeartRadio Music Awards when fans could expect the song, he simply said: "Certainly in our lifetime."

Meanwhile, the 26-year-old singer - who unveiled his latest LP 'Divide' last week - thinks Taylor could be releasing new music before the year is out.

He shared previously: "Taylor [Swift] isn't going to be releasing until probably the end of this year. Christmas is the smartest time to release because that's when everyone buys records."

Ed and Taylor have been great friends for a long time now and the flame-haired singer believes that is the case because they both know what it was like to be the "underdog" at school but admits they can sometimes take their competitiveness too far.

He explained: "There's an underdog element to it. Taylor was never the popular kid in school. I was never the popular kid in school.

"Then you get to the point when you become the most popular kid in school - and we both take it a bit too far.

"She wants to be the biggest female artist in the world and I want to be the biggest male artist in the world. It also comes from always being told that you can't do something and being like, 'F you. I can.'"

And Ed is so close to Taylor that he makes an exception by attending her Fourth of July party each year whilst politely declining all other celebrity parties.

He said: "That was at Taylor Swift's 4th July party. That's the only [celebrity party] I do."