Rita Ora and Liam Payne are to debut their single 'For You (Fifty Shades Freed)' on 'The Tonight Show Starring Jimmy Fallon'.

The British duo released the video for their new track on January 26, and they are now set to perform the song - which features in the upcoming 'Fifty Shades Freed' movie - on the American chat show later today (31.01.18).

Rita, 27, is set to release her long-awaited second studio album later this year, and she'll also sit down for a chat with Jimmy.

And the blonde beauty - who released her debut album, 'Ora', in 2012 - will then be joined on stage by Liam for a performance of the track.

As well as recording the song, Rita also stars in the 'Fifty Shades' movie series.

The 27-year-old singer-songwriter plays the part of Christian Grey's sister, Mia, in the films, and she recently revealed that 'Fifty Shades Freed' is ''way more thriller-y'' than the earlier two movies.

Rita felt sad making the final film in the franchise, but she's promised fans that 'Fifty Shades Freed' will feature plenty of heart-stopping scenes.

Rita explained: ''I was really excited because I definitely had a bigger part in the movie, and I ended up loving each and every one of the cast and crew, including Dakota [Johnson, Anastasia Steele] and Jamie [Dornan, Christian Grey], and everyone was super supportive of one another.

''It was actually kind of sad wrapping up, because I guess that was the last movie, but it's so exciting.

''It's definitely way more thriller-y than anything. It's got moments of my getting kidnapped. There's fighting scenes. It's really great.''

In the best-selling books by E. L. James, Mia is only a small part of the story.

But Rita revealed that the success of the movies has allowed her to develop the character.

She said: ''I think she evolved a lot. She never was meant to be that much of a character, to be honest, and then I think that over time, the success of the movie really gave us the ability to build my role.''