One Direction and their legion of fans pushed "TODAY show" and "1DTODAY" into a trending Twitter topic in the U.S.
The frenzy wasn't just online — thousands crammed into Rockefeller Plaza and the surrounding blocks to catch the boys from Britain.
"We have never, ever had a crowd this big," Al Roker said. "This one breaks ALL the records."
Join in the fun: tweet with the hashtag #1DTODAY.
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