"iGo One Direction"
After returning from vacation, Carly falls ill with "Jungle Worms", but feels better after two days, although she is still contagious. Later, Freddie tells Kayla, Sam, Carly and Gibby that he has received an e-mail from the manager of boyband One Direction (whom Gibby appears to be a massive fan of), saying that they are in the Seattle area and would like to perform a song on iCarly. When they arrive, One Direction perform "What Makes You Beautiful" in the iCarly studio. (Afterwards, Sam takes a liking to Zayn Malik while Gibby tells Niall Horan and Louis Tomlinson that he gives good foot massages). After Harry Styles drinks from Carly's water bottle, he gets Jungle Worms from Carly and then she takes care of Harry and he is still in bed after a week, much longer than Carly was sick for, making Sam believe that Harry is not actually sick any more and just wants the attention. Liam Payne announces that the boys will have to cancel their shows in San Francisco if Harry is not better soon, so Liam, Zayn, Niall and Louis discuss with Carly, Kayla, Sam and Freddie what to do to try to get Harry out of bed. Freddie says that Harry might feel better if he thought that he was being kicked out of One Direction and being replaced by Gibby, and when he sees Gibby performing with Liam, Niall, Louis and Zayn, Harry is shocked by how bad Gibby is at singing and dancing and says that he is feeling better, meaning that he was faking. The episode ends with One Direction performing "What Makes You Beautiful" on iCarly. After the song, Sam grabs Zayn by the neck and drags him into the elevator.