Rita Ora secretly dated Bruno Mars

London-born Ora, who has since began a relationship with Robert Kardashian, said that she developed a crush on the 26-year-old American pop star when he was recruited by her record label to help her write some songs, reported Sun online.

"It was love at first sight, such a great experience. We met in 2009. I was 18 and starting out at Roc Nation. Bruno was unknown back then too. He was a struggling songwriter hired to write songs for me. I thought, 'Wow, that's just the world's greatest guy'," Ora said

When asked if they would get back together, the 'RIP' hitmaker said, "Our time together was wonderful. But once we got famous, work got in the way. We ended it last year. But we remained close. And when we were together we were so happy," she added.