Rita Ora confirms Calvin Harris blocked her performance at Teen Choice Awards

The blonde beauty told 'On Air with Ryan Seacrest' on Tuesday

(12.08.14): "For anybody who doesn't understand how it works, he wrote and produced the song. So he has to approve anything TV-wise for anybody who doesn't get it. And obviously he owns the rights to it and he didn't approve the Teen Choice Awards."

But Rita, who had been planning her performance for "about a month,"

claimed she wasn't shocked by Calvin's "last minute change" of heart.

She said: "I could have got told a few weeks earlier, you know. That would have been nice. It was a last minute change, but you know what, it happens and we move on and move forward ... It is what it is, man.

You know, you write a song with somebody, and I guess there's some stuff that comes with it ... Everything happens for a reason, that's how I look at it."

Rita is still a huge fan of the song, which was "written out of love"

when she and Calvin were still together.

She said: "I wrote this with a really special person, and it was the first time I ever kind of opened my doors up for somebody I knew personally. This song was written out of love ... But you know, people move on and move forward."

Before performing an acoustic version on the radio show, she added:

"Before I do this, it's still an amazing song,. I don't want anybody to have like a dark cloud over this song."