Adele and Harry Styles have been holidaying in the Caribbean together, sparking a fan frenzy on social media.
Popular British comedian and Carpool Karaoke host James Corden has also been spotted with the singers on the eastern Caribbean island of Anguilla.
Pictures of a smiling Adele, 31, have surfaced on Twitter, leading fans to marvel at the 'Hello' hitmaker's dramatic weight loss. It's believed the singer-songwriter has lost three stone (19 kilograms) in a matter of months.
Adele's slimmer physique has drawn both praise and concern on social media, with fans claiming she was "unrecognisable" in Instagram photos shared from her Christmas party. Her weight loss caused the mother-of-one to become a trending topic on Twitter.
"The weight of a global icon trending is a sign there is still work to do in how we value women in 2020. Being thinner doesn't add to her value," British actress Jameela Jamil tweeted in response to the frenzy.
Although Adele and Styles are known to be good friends, the pairing has prompted speculation that a musical collaboration could be in the works. Adele's last studio album, 25, was released in 2015.
"I need a Harry Styles and Adele collab now, thank you," one Twitter user wrote.
"Do you realise that Harry and Adele collabing could literally break records and make the whole world freak?" an excited fan exclaimed.
"Can you imagine how a mix between 'Someone Like You' or 'Hello' between 'Falling' or 'Fine Line' would sound like?" another mused, referencing the former One Direction member's second solo album Fine Line, which was released shortly before Christmas.
A release date for Adele's upcoming fourth studio album has yet to be confirmed.