Source: <a href=https://www.google.com/url?rct=j&sa=t&url=http://thecelebritycafe.com/feature/2014/08/rita-ora-says-ex-calvin-harris-prevented-her-performing-teen-choice-awards&ct=ga&cd=CAIyGjViN2YyMDkwMTU0OTZhNWQ6Y29tOmVuOlVT&usg=AFQjCNGCyBdx374jpi2WVrBxOKRmZil0hQ class="colorbox" title="Rita Ora says ex Calvin Harris prevented her from performing at Teen Choice Awards” >calvin harris