Justin who? British boy band One Direction has set their sights on the US and there's no stopping this invasion. First stop? iCarly.

According to Pop Crush, One Direction will appear on the fifth season of Nickelodeon's hit show.

The five-member band taped their episode on Monday and will receive a ton of screen time according to the plot (One Direction accepts an invite to perform on the web show, but Harry suddenly gets sick. Poor Harry!).

Still not excited? Well, fans can also expect a performance of "What Makes You Beautiful."

One Direction, who are huge in the UK thanks to The X Factor, is gearing up for the US release of their debut album Up All Night.

No word yet on when the episode will air.