He's acquired quite a few celebrity friends since rising to fame on The X Factor, namely Nick Grimshaw, Rita Ora, Ed Sheeran and Cara Delevingne among the list.
But it seems Harry Styles has been busy making yet more celebrity friends recently.
The One Direction star surprised onlookers on Thursday as he spent his day with James Corden and his family.
Who knew they were friends? Harry Styles seems to now be best buddies with James Corden as he spends the day with his family in New York on Thursday
Harry even looked part of the Corden family as he headed out shopping with James, his wife Julia and their son Max.
They looked like they'd been friends for years as they wandered along the New York City streets together.
And 19-year-old Harry seemed so comfortable with the brood he even played happy families by helping with Max's pushchair.
Odd mix: The teenage One Direction star headed out shopping with actor James, his wife Julia and their son Max
Making friends: He's known for his star friendships with the likes of Nick Grimshaw and Rita Ora but it seems Harry's now also best pals with comedian Corden
The foursome looked like they'd been having a nice day as they sauntered along in the summer sun.
Styles stood out as he wore his trademark hat, skinny jeans and shirt open over a plain T-shirt.
He wore trainers with his jeans rolled up as he walked along next to Julia, who was pushing the pram.
Standing out: Styles was most certainly recognisable thanks to his trademark hat and skinny jeans look
Part of the family: The former X Factor star seemed to fit in with the Corden brood as they all wandered around in the New York sunshine
Corden meanwhile took on daddy duties as he carried Max on one hip while also holding the tot's drink.
The actor wore shorts and a T-shirt more in fitting with the hot weather.
At one point Styles was stopped by fans to take pictures on their mobile phones and he happily obliged.
Helpful lad: Harry even helped with childminding duties as he carried the pushchair and placed it in a waiting car
Handy: Styles not only joined them for their shopping outing he also jumped in the car with them to continue their day together
And he showed what a kind soul he is as he even carried the folded up pushchair and lifted it up into the waiting car for the Cordens.
The group then drove off to enjoy the rest of their afternoon behind closed doors.
One Direction are currently in the States carrying out their latest tour.
And they've certainly been busy of late as they've released the trailer to their upcoming movie - and revealed they're releasing a new track optimistically called The Best Song Ever.
Another star friend: This week Harry has also hung out with model Rosie Huntington-Whiteley after she shot a Glamour cover with them and headed to one of their concerts
Luck boy: She also gave a flash back and posted this picture of them together a little while ago
But James isn't the only celebrity friend Harry has been adding to his list recently.
He's also befriended supermodel Rosie Huntington-Whiteley after she shot a Glamour cover with the band.
In return she went to watch the boys in concert on Thursday evening and headed backstage to pose for photos with them.