Source: <a href=https://www.google.com/url?rct=j&sa=t&url=http://www.thehothits.com/news/47563/ex-bf-calvin-harris-banned-rita-ora-from-performing-at-the-teen-choice-awards-&ct=ga&cd=CAIyGjViN2YyMDkwMTU0OTZhNWQ6Y29tOmVuOlVT&usg=AFQjCNEo37wAMcYcY7stcoho5cx9Ca8JNQ class="colorbox" title="Ex BF Calvin Harris banned Rita Ora from performing at the Teen Choice Awards” >calvin harris