Could a Harry Styles and Taylor Swift duet be on the cards? Well the couple were certainly putting their pop talents to good use on Monday night in New York as they took to the stage to perform the Kenny Rogers and Dolly Parton classic Islands 'In The Stream'.
'Haylor' as they've been christened by fans met up following One Direction's sell-out Madison Square Gardens gig and were clearly in the mood to party as they celebrated after the concert.
Whilst they have not as yet confirmed the romance, it's clear Harry and Taylor are quite the duo as they performed together.
Taylor Swift arrives at 1D after party in New York (Splash News)
A source told The Mirror said: “It was brilliant. There was a huge cheer when they got up.”
Clearly a favourite with the rest of the 1D boys, Taylor also joined in with them and good friend Ed Sheeran on 'I Want It That Way' by the Backstreet Boys.
It's not just on stage that this dream couple are singing the same tune as the couple were spotted looking coy as they arrived back at the 'We Are Never Ever Getting Back Together' star's hotel holding hands at 4am, with lothario Harry appearing to be carrying an overnight bag.
Harry leaves Taylor's hotel after spending the night (Splash News)
After a good sleep, ahem, the pair emerged the next day looking slightly sheepish just moments apart.
Clearly they can't get enough of each other as Harry was spotted arriving back at the hotel at 11pm on Tuesday night, this time carrying a large over night band. It must have all his hair products in!
Harry Styles arrives back at Taylor Swifts hotel for second sleep over on Tuesday night (Splash News)