Calvin Harris confirms Rita Ora split on Twitter
Rita Ora and Calvin Harris have split up after a year of dating.
The DJ confirmed the break-up on Twitter.
He posted: "To address speculation - myself and Rita ended our relationship some time ago. She is a beautiful, talented woman and I wish her all the best."
Rita Ora hasn't made any comment. The pair both performed at the Big Weekend in Glasgow in May with Ora watching Harris' set from the side of the stage.
He wrote and produced the 23-year-old's number one single I Will Never Let You Down.
Earlier this year she was asked about working with her boyfriend by Radio 1's Nick Grimshaw.
"Honestly, it was so natural," she said.
"I wouldn't have done it if it didn't make any sense.
"We were sitting at home, he started humming and then I started humming and then we hummed together.
"I actually think it's one of the coolest songs I've ever heard, in my mind."
Calvin Harris was named by Forbes as the world's top earning DJ in 2013.
The business magazine estimated he earned £27 million.
His album 18 Months is the first in UK history to feature nine top ten singles.
Rita Ora's second album is due out later this year.