Singer Rita Ora was nervous writing "I Will Never Let You Down" with her boyfriend and musician Calvin Harris.

The 23-year-old said that she initially refused Hariis' idea to record a song together and was wary of putting her emotions down into words because she didn't want to jinx their relationship, reports contactmusic.com.

"I thought it was a bad idea. I said- 'I don't know what's gonna happen, babe.' All that political s**t, I didn't want to think about it. But when we started to write, it happened so naturally it felt right," said Ora.

"There was a moment when we were like, you know, we're both known. It could become difficult. This message, I won't let you down, is a message of hope. It's the little reality that we do have left in this... fame bubble," she added.