Harry Styles surprised a group of female fans this weekend after he made a late arrival to a close pal's student party.
We bet that was quite a shock to the party goers.
The One Direction singer rolled up to his friends bash at 1.30am and stayed there for three hours.
Harry's girlfriend Taylor Swift, who was in Germany working over the weekend, need not worry that her boyfriend was partying with a group of ladies though.
A source close to Harry said: "He is not looking at other girls and is very happy with Taylor.
"He simply dropped by as a favour for a friend and was polite and friendly to everyone he met."
Related Story: [Taylor Swift and Harry Styles stay the night together]
So what exactly did global superstar Harry Styles do for three hours at a student flat?
Well, partly be the perfect house guest it would seem.
The excitable group of party goers of course decided to take photographic evidence of the star with one picture showing Harry doing a spot of washing up.
Despite being in one of the biggest boy bands in the world right now, it's good to see that Harry has stayed grounded.
Georgina Dick was lucky enough to be helped out by Harry with the dishes, tweeting that they talked about what he would have done if he hadn't been in One Direction.
She wrote: "We also talked about whether he would have gone to uni and football teams while we washed up together."
Bethanney Chapman, another guest at the party, also took to Twitter to gush about Harry Styles' unexpected visit.
She wrote: "Best day of my life! Chilled with him for like 3 hours!!! I was literally in shock the whole time, trying to play it cool haha, but inside i was freaking out!!!!!"
We don't blame you.