The One Direction star and 'Your Song' singer, who plays the sister of lead star Christian Grey [Jamie Dornan], Mia Grey, in the saga, both shared a picture of them looking glam on their social media channels on Wednesday night (20.12.17), with the movie's name as the hashtag.
They both captioned the post: ''#FiftyShadesFreed (sic)''
The photo sent fans into meltdown guessing whether they have recorded a soundtrack for the third instalment in the franchise or that the 24-year-old hunk will make his acting debut in the forthcoming film, with the latter highly unlikely.
If they have duetted on a track, Liam would follow in the footsteps of his former bandmate Zayn Malik who did 'I Don't Wanna Live Forever' with Taylor Swift for the last movie, 'Fifty Shades Darker'.
Last month, Rita and Liam shared pictures working in the studio working together.
The 'Anywhere' hitmaker and 'Bedroom Floor' singer got straight to work just a day after the MTV European Music Awards (EMAs) - which Rita hosted - with the news surfacing after songwriter Andrew Watt shared a selfie of the pair on his Instagram account.
Liam's girlfriend Cheryl Tweedy - with whom he has eight-month-old son Bear - will no doubt be envious of her beau working with the 'Lonely Together' singer as in 2015, when they were both judges on 'The X Factor', the former Girls Aloud star said she'd love to jump into the studio with Rita.
At the time, she said: ''I miss working with the girls in the band, so would love to work with Rita now on something. I know it'd be great. She's so funny.''
Once a fire fighter, always a fire fighter.
Today (September 14th) marks the 25th anniversary since the album's 1993 release.
Labrinth has teamed up with Sia and Diplo to form a new supergroup: LSD.
The Struts teamed up with Kesha for a red and gold themed music video as part of their collaboration on 'Body Talks'.
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