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Thousands of screaming and cheering One Direction fans took over New York City’s Rockefeller Center Friday morning to see the English-Irish pop boy band perform on NBC’s "Today" show.
"It seems to me this is the biggest crowd we've ever had," Al Roker said.
The New York City Police Department estimated that 18,000 Directioners were packed into about two blocks outside a temporarily renamed Studio 1D.
The band also discussed the upcoming documentary about them, "One Direction: This Is Us," which is hitting theaters Aug. 29 and Aug. 30, and why they decided to let 11 cameras follow their every move for a year.
"There's only so much you can get across on social media or in a five minute interview," Niall Horan told the "Today." "So we really wanted to give behind-the-scenes access."
"It's also about our families as well, the way they deal with us being away from home," Liam Payne added.
Fans, some of whom lined up a week ago, took to social media to share their excitement about seeing the band live as part of the Toyota Summer Concert Series.
Take a look at some of the images gathered by NBC News: