And it looks like it could be a very special collaboration for the soundtrack of the third installment of the Fifty Shades franchise.
Fans of the pair went into meltdown last night when both Liam and Rita teased the collab to their socials. Former One Direction singer Liam uploaded a photo of the pair dressed up with the caption '#fiftyshadefreed'.
Rita later uploaded the exact same photo to her own Instagram page.
Despite the pair giving no other details away, it looks like Liam could be following in his old friend Zayn Malik's footsteps and recording the official single for the movie.
Fifty Shades Freed will be the third installment of the popular franchise, and will follow on from Fifty Shades of Grey (2015) and Fifty Shades Darker (2017).
The new movie, which is set for release on Valentines Day in 2018, will conclude the storyline between main characters Christian and Ana, with a few twists and turns throughout.
Former One Direction singer Zayn Malik teamed up with Taylor Swift to record the track 'I Don't Wanna Live Forever' for Fifty Shades Darker earlier this year.
The pair dropped the steamy video for the single, which kicks off with a smart looking Zayn stepping out of a swanky black car. As it pours with rain, the paparazzi fight to get a shot of the star as he makes his way into a hotel.
Check it out below:
Meanwhile Rita is no stranger to Fifty Shades, the singer has appeared in the two previous films as Mia Grey, Christian's younger sister.
We can't wait for more news about Rita and Liam's duet!
Now check out some of biggest and best collaborations of 2017:
After releasing her amazing track 'Bad Liar', Selena Gomez worked with music producer Marshmello on the hit 'Wolves'.
Little Mix and CNCO: 'Reggaeton Lento'
Little Mix joined forces with Latino band CNCO for their upbeat track 'Reggaeton Lento'. The girls sing Spanish lyrics in the track and they performed it live together for the first time at The X Factor final.
Justin Bieber, Luis Fonsi and Daddy Yankee: 'Despacito'
One of the biggest hits of 2017 came when Justin Bieber lent his vocals to Daddy Yankee and Luis Fonsi's MASSIVE Spanish single 'Despacito'. We are still singing it now!
Liam Payne and Zedd: 'Get Low'
Former One Direction singer Liam Payne teamed up with German producer Zedd on his second solo single 'Get Low' and it was a massive hit with fans.
Craig David and Bastille: 'I Know You'
In what was perhaps the strangest collaboration of 2017, Craig David teamed up with Bastille and the results were brilliant! Dropping the single 'I Know You', the two music genres worked amazingly.
Rak-Su, Naughty Boy and Wyclef Jean: 'Dimelo'
X Factor 2017 winners Rak-Su were fortunate enough to work with Naughty Boy and Wyclef Jean on their winning single 'Dimelo'. It's so catchy!
Camila Cabello and Young Thug: 'Havana'
One of the catchiest songs of the year came from former Fifth Harmony member Camila Cabello. The singer worked with Young Thug on the track 'Havana'.
Calvin Harris, Katy Perry, Big Sean and Pharrell Williams: 'Feels'
2017 was the year of collaborations for Scottish DJ Calvin Harris. He teamed up with Katy Perry, Big Sean and Pharrell Williams on the track 'Feels'.
ZAYN and Sia: 'Dusk Till Dawn'
Former One Direction singer ZAYN worked with Sia to record the single 'Dusk Till Dawn'. The amazing track featured on the movie The Mountain Between Us featuring Kate Winslet and Idris Elba.
Former One Direction star Louis Tomlinson delighted his fans in 2017 when he teamed up with American singer Bebe Rexha on the track 'Back To You'.
Avicii and Rita Ora: 'Lonely Together'
In a comeback year of music for both of them, Rita Ora and Avicii delivered the amazing single 'Lonely Together'.
Calvin Harris, Frank Ocean and Migos: 'Slide'
In what was another amazing Calvin Harris collab, the 33-year-old worked with Frank Ocean and Migos to drop the summer track 'Feels'.
Sigala and Ella Eyre: 'Came Here For Love'
He's worked with a number of people in the past, but this year DJ Sigala teamed up with Ella Eyre. The 23-year-old showed off her stunning vocals on the track 'Came Here For Love'.
The Weeknd and Daft Punk: 'I Feel It Coming'
The Weeknd and electronic duo Daft Punk teamed up to deliver the amazing track 'I Feel It Coming'.
Clean Bandit and Julia Michaels: 'Miss You'
Clean Bandit love a collaboration! This year they teamed up with American singer songwriter Julia Michaels on the emotional single 'Miss You'.
Katy Perry and Nicki Minaj: 'Swish Swish'
Katy Perry got her friend Nicki Minaj to help her out on the single 'Swish Swish'.
Selena Gomez and Kygo: 'It Ain't Me'
Pop princess Selena Gomez and Norwegian DJ Kygo created 'It Ain't Me' and it was hugely popular with fans of the pair.
Tinie Tempah and Jess Glynne: 'Not Letting Go'
British singers Tinie Tempah and Jess Glynne made the perfect summer track when they released 'Not Letting Go'.
DJ Khalid and Rihanna: 'Wild Thoughts'
Despite not releasing much solo music in 2017, Rihanna featured on DJ Khalid's single 'Wild Thoughts', and EVERYONE loved it.
Stormzy and MNEK: 'Blinded By Your Grace Pt. 2'
After a seriously impressive 2017, Stormzy released his single 'Blinded By Your Grace Pt. 2' featuring MNEK towards the end of the year.
Ed Sheeran and Eminem: ''River'
To end the year off, Ed Sheeran worked with his idol Eminem on the track 'River' which features on the rapper's new album 'Revival'.
After releasing her amazing track 'Bad Liar', Selena Gomez worked with music producer Marshmello on the hit 'Wolves'.
Little Mix and CNCO: 'Reggaeton Lento'
Little Mix joined forces with Latino band CNCO for their upbeat track 'Reggaeton Lento'. The girls sing Spanish lyrics in the track and they performed it live together for the first time at The X Factor final.
Justin Bieber, Luis Fonsi and Daddy Yankee: 'Despacito'
One of the biggest hits of 2017 came when Justin Bieber lent his vocals to Daddy Yankee and Luis Fonsi's MASSIVE Spanish single 'Despacito'. We are still singing it now!
Liam Payne and Zedd: 'Get Low'
Former One Direction singer Liam Payne teamed up with German producer Zedd on his second solo single 'Get Low' and it was a massive hit with fans.
Craig David and Bastille: 'I Know You'
In what was perhaps the strangest collaboration of 2017, Craig David teamed up with Bastille and the results were brilliant! Dropping the single 'I Know You', the two music genres worked amazingly.
Rak-Su, Naughty Boy and Wyclef Jean: 'Dimelo'
X Factor 2017 winners Rak-Su were fortunate enough to work with Naughty Boy and Wyclef Jean on their winning single 'Dimelo'. It's so catchy!
Camila Cabello and Young Thug: 'Havana'
One of the catchiest songs of the year came from former Fifth Harmony member Camila Cabello. The singer worked with Young Thug on the track 'Havana'.
Calvin Harris, Katy Perry, Big Sean and Pharrell Williams: 'Feels'
2017 was the year of collaborations for Scottish DJ Calvin Harris. He teamed up with Katy Perry, Big Sean and Pharrell Williams on the track 'Feels'.
ZAYN and Sia: 'Dusk Till Dawn'
Former One Direction singer ZAYN worked with Sia to record the single 'Dusk Till Dawn'. The amazing track featured on the movie The Mountain Between Us featuring Kate Winslet and Idris Elba.
Former One Direction star Louis Tomlinson delighted his fans in 2017 when he teamed up with American singer Bebe Rexha on the track 'Back To You'.
Avicii and Rita Ora: 'Lonely Together'
In a comeback year of music for both of them, Rita Ora and Avicii delivered the amazing single 'Lonely Together'.
Calvin Harris, Frank Ocean and Migos: 'Slide'
In what was another amazing Calvin Harris collab, the 33-year-old worked with Frank Ocean and Migos to drop the summer track 'Feels'.
Sigala and Ella Eyre: 'Came Here For Love'
He's worked with a number of people in the past, but this year DJ Sigala teamed up with Ella Eyre. The 23-year-old showed off her stunning vocals on the track 'Came Here For Love'.
The Weeknd and Daft Punk: 'I Feel It Coming'
The Weeknd and electronic duo Daft Punk teamed up to deliver the amazing track 'I Feel It Coming'.
Clean Bandit and Julia Michaels: 'Miss You'
Clean Bandit love a collaboration! This year they teamed up with American singer songwriter Julia Michaels on the emotional single 'Miss You'.
Katy Perry and Nicki Minaj: 'Swish Swish'
Katy Perry got her friend Nicki Minaj to help her out on the single 'Swish Swish'.
Selena Gomez and Kygo: 'It Ain't Me'
Pop princess Selena Gomez and Norwegian DJ Kygo created 'It Ain't Me' and it was hugely popular with fans of the pair.
Tinie Tempah and Jess Glynne: 'Not Letting Go'
British singers Tinie Tempah and Jess Glynne made the perfect summer track when they released 'Not Letting Go'.
DJ Khalid and Rihanna: 'Wild Thoughts'
Despite not releasing much solo music in 2017, Rihanna featured on DJ Khalid's single 'Wild Thoughts', and EVERYONE loved it.
Stormzy and MNEK: 'Blinded By Your Grace Pt. 2'
After a seriously impressive 2017, Stormzy released his single 'Blinded By Your Grace Pt. 2' featuring MNEK towards the end of the year.
Ed Sheeran and Eminem: ''River'
To end the year off, Ed Sheeran worked with his idol Eminem on the track 'River' which features on the rapper's new album 'Revival'.
