Leicester Square has descended into chaos as One Direction fans camped overnight, eagerly anticipating the arrival of the boyband for their This Is Us premiere on later today.
According to Sky News, devoted fans have been arriving in central London from as early as Sunday.
One Direction fans take a quick snooze (WENN)
Recent photos emerging show fans sleeping on makeshift beds, with sleeping bags and cardboard littering the square. While girls clutch onto posters and banners bearing the pop star's faces.
It's been estimated that up to 7,000 One Directioners will turn up to the movie event this evening in hopes of catching a glimpse of The Little Things singers.
Just one more day to go for eager fans (WENN)
One fan spoke to Sky News about her hopes of catching a close-up view of the singers: "With our numbers that we got they said that the first 200 would probably be right at the front of the barriers so hopefully we get to meet a few of them and get an autograph, maybe a photo," said 22-year-old Rohays Vonmrtzinger.
Meanwhile 1D have been busy as ever counting down to the big event on Twitter.
Harry wrote: "Are you excited about the movie? Long day of interviews for the film.. Got me excited for tomorrow." While Liam added: "Amazinggggg day today! Can't wait to see all of you later in Leicester Square!!"
7,000 fans are estimated to turn up to 1D's premiere on Wednesday (WENN)
Niall also posted a message on the social networking site, writing: "Just pinching myself! Absolutely huge day today! We want u to know that u made this all happen!
"And when u see the film or are standing on Leicester square tonight! U can all turn to eachother and be like 'we did this' so thank you so much."