Rita Ora has posted a topless snap to celebrate the success of new single, I Will Never Let You Down.

The 23-year old took to Instagram to share the pic, which sees her showing off some series side-boob as she poses with her back to the camera with a red number one drawn on her bare back.

[related]She accompanied the image with the caption: "#iwillneverletyoudown (No.1) it's because of you!! BOTS!!! Thank you #uvealwaysgotmybackLOL."

The Radioactive hitmaker also turned heads at her G-A-Y gig over the weekend, where she performed I Will Never Let You Down, stripping down to her Calvin Klein underwear.

Will Rita hold on to the top spot? Make sure you check out the Official Chart Update on Wednesday (May 14) from 4pm to find out…