The English singer-songwriter's track 'Meet Me In The Middle' is on the soundtrack of the highly anticipated erotic movie, due for release on Valentine's Day, but so far Jessie's none the wiser about where it will appear!
Chatting to ITV's Lorraine, she said: "I just really hope it's in a sex scene! I really hope that's going to happen! Who knows?! It probably won't be!"
Jessie's in good company on the soundtrack as other featured artists include Beyonce, Sia, The Weeknd and Annie Lennox.
It's been a fantastic year for Jessie already with Fifty Shades and the news she's been nominated at the BRIT Awards in the 'Best Female Solo Artist' category: her second year as a nominee.
Jessie told Lorraine Kelly that this time around she wanted to enjoy the experience, as last year she'd been both nervous and "guilty" at being nominated when she was a newcomer.
"I was a little bit like a rabbit in headlights the first time because I was up for two," she said.
"I was up for 'Best Breakthrough' and 'Best Female' and I thought it was a bit cheeky that I'm up for 'Best Female' when I've just entered on the scene… I spent too long on the red carpet, didn't get a dinner, then was nervous so this time I'm just going to relax and actually have fun!"
As for the future, the starlet said she has big aspirations but wouldn't say no to a judging spot on X Factor or The Voice!
"I would be quite a nice mentor," she mused. "I'd quite like that. I'd be pushy so I'd want the best for my acts."
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