Alicia Keys will feature on Sam Smith's re-recorded track I'm Not The Only One for 10th anniversary celebration of their debut album In The Lonely Hour

Sam Smith revealed Alicia Keys will feature on a re-recorded version of their hit track, I'm Not The Only One, to celebrate the 10th anniversary of their debut album In The Lonely Hour (2014). 

The Stay With Me hitmaker, 32 - who recently revealed they were 'unable to walk' following a traumatic ski accident - jumped to their Instagram page to announce the duet on Tuesday. 

The new version of I'm Not The Only One will appear on Smith's upcoming 10th anniversary edition album of In The Lonely Hour - which drops next month on August 2. 

Sam - who uses they/them pronouns - uploaded what appeared to be a throwback snap of the pair as they toasted refreshing drinks while spending time together in a bar.

The stars held big smiles on their faces as they held a lighthearted conversation with each other.

Sam Smith, 32, revealed Alicia Keys, 43, will feature on a re-recorded version of their hit track, I'm Not The Only One, to celebrate the 10th anniversary of their debut album In The Lonely Hour (2014)

Sam Smith, 32, revealed Alicia Keys, 43, will feature on a re-recorded version of their hit track, I'm Not The Only One, to celebrate the 10th anniversary of their debut album In The Lonely Hour (2014)

The new version of I'm Not The Only One will appear on Smith's upcoming 10th anniversary edition album of In The Lonely Hour - which drops next month on August 2

The new version of I'm Not The Only One will appear on Smith's upcoming 10th anniversary edition album of In The Lonely Hour - which drops next month on August 2

Another image showed the pair posing together with city skyscrapers towering above them in the background. 

Keys flashed a glimpse of her toned midriff in a cropped, blue knit sweater as well as a pair of high-waisted, blue bottoms. 

Alicia's locks were pulled back into a sleek bun, preventing any loose strands from falling onto her face. 

The No One songstress accessorized the look with a pair of gold, heart-shaped earrings as well as gold-chained necklaces. For a finishing touch to the outfit, the beauty also sported a pair of fashionable shades. 

Sam stood behind the beauty in a long-sleeved, white shirt which was layered with a black and white-colored vest on top. 

Smith captioned the post with, 'I'm Not The Only One feat. the truly incomparable @aliciakeys. Coming Friday August 2nd.'

'I am so honoured to have such an incredible talent and a beautiful soul join me on this track to celebrate a decade of In The Lonely Hour.' 

They continued, 'Released with the digital versions of In The Lonely Hour (10th Anniversary Edition) this Friday.' 

Smith captioned the post with, 'I'm Not The Only One feat. the truly incomparable @aliciakeys. Coming Friday August 2nd'

Smith captioned the post with, 'I'm Not The Only One feat. the truly incomparable @aliciakeys. Coming Friday August 2nd'

They continued, 'Released with the digital versions of In The Lonely Hour (10th Anniversary Edition) this Friday'

They continued, 'Released with the digital versions of In The Lonely Hour (10th Anniversary Edition) this Friday'

Last month in June, Smith was joined by Alicia for a surprise duet of the song, I'm Not The Only One, at Julius' bar in NYC. 

During the performance - which saw Keys also playing the tune on a piano - Sam gushed, 'Thank you to Alicia Keys. This is a dream come true,' per Billboard. 

The songstress responded with, 'This is amazing. Can you believe we never did this before? Except for right now? That's crazy!'

Smith later jumped to their Instagram page to share a photo of the two that was taken at the bar in Manhattan. 

They wore a sleeveless, black shirt that had the name of the bar Julius' written in green lettering on the front. Sam also wore a plaid skirt that was secured with a thick, black leather belt wrapped around the waist. 

Keys held a big smile on her face as she sported a black, cropped top as well as a pair of high-waisted, blue pants. 

Smith wrote, 'Celebrating 10 years of 'In The Lonely Hour' in one of my favourite places in New York, @juliusbarnyc.' 

'Thank you @aliciakeys for making the evening even more special,' the British-born music artist also added.  

In The Lonely Hour was Sam's debut album which was released in 2014 and launched them into stardom with hits such as Stay With Me and Lay Me Down; seen in May in NYC

In The Lonely Hour was Sam's debut album which was released in 2014 and launched them into stardom with hits such as Stay With Me and Lay Me Down; seen in May in NYC 

Upon announcing the 10th anniversary edition of In The Lonely Hour last month in June, Sam jumped to Instagram to share a photo of the album cover which was similar to the original a decade earlier; seen in February in NYC

Upon announcing the 10th anniversary edition of In The Lonely Hour last month in June, Sam jumped to Instagram to share a photo of the album cover which was similar to the original a decade earlier; seen in February in NYC 

In The Lonely Hour was Sam's debut album which was released in 2014 and launched them into stardom with hits such as Stay With Me and Lay Me Down. 

The LP landed spots on various worldwide charts, include number two on the U.S. Billboard 200 and number one on the U.K. Albums chart. I'm Not The Only One was one of the tracks on the album. 

In 2015 - following the release of their first studio album - Smith garnered six Grammy nominations, and won four: Best New Artist, Best Pop Vocal Album, as well as Record of the Year and Song of the Year for Stay With Me. 

Upon announcing the 10th anniversary edition of In The Lonely Hour last month in June, Sam jumped to Instagram to share a photo of the album cover which was similar to the original a decade earlier. 

'In The Lonely Hour (10th Anniversary Edition) This year marks a decade since the release of my debut album.' 

They are set to perform more shows throughout August and September in Europe, with the next show slated for August 8 during the Denmark Smukfest; seen in March in Chile

They are set to perform more shows throughout August and September in Europe, with the next show slated for August 8 during the Denmark Smukfest; seen in March in Chile 

They also wrote, 'I feel so incredibly lucky to be celebrating this milestone with you. My team and I have created this beautiful anniversary edition for us all, and for the last 10 years.'

'Today is only the beginning Sailors, we have so much to celebrate with you between now and August. I can't wait to look back on 'In The Lonely Hour' together. Coming August 2nd. Pre-order on the link in my bio.'

Smith has been keeping busy while performing on stage during their Gloria Blackout dates. 

They are set to perform more shows throughout August and September in Europe, with the next show slated for August 8 during the Denmark Smukfest.