The guys taped their appearance on the show on Monday, and a rep for the band said that fans lined up outside the Nickelodeon show's set 12 hours before the group arrived to film the episode. More than 500 fans were reportedly waiting for the guys at LAX when they landed. The episode will air during the show's fifth season.
According to a show synopsis, "Carly returns home sick after a trip and discovers that One Direction has accepted an invitation to perform on their web show. Not long after arriving, bandmate Harry becomes sick and we see Carly doting over him. Realizing Harry is playing sick for the attention, they hatch a plan to get him back in the group by telling him Gibby has become their newest bandmember. Meanwhile, Spencer becomes a personal trainer and gives a bratty girl a makeover."
In other news, One Direction has moved up the release of their debut album, Up All Night, one whole week to March 13. The guys confirmed the news Wednesday (February 1) on Twitter. The album dropped in their native U.K. last fall.
The members of One Direction, who got their start after appearing on the British "X Factor" in 2010, are already pop megastars back home, and now they are ready to take over the hearts of teen girls here in the U.S. 1D, as their fans call them, will be touring with Big Time Rush starting later this month.
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