"iCarly" is about to feel the effects of a British Invasion. The show has just booked British boy band One Direction to appear on the fifth season of the Miranda Cosgrove-starring show.

The guys will be on set Monday to tape their appearance on the episode, during which they will play themselves and perform "What Makes You Beautiful."

According to a synopsis of the episode, "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."

The guys of One Direction, who got their start after appearing on "The X Factor" in 2010, are already superstars in their native U.K., and now it seems they are poised to break Stateside. Their debut album, Up All Night, is set for U.S. release on March 20, and they will be touring with Big Time Rush starting next month.

Cosgrove stopped by the MTV News offices recently and teased that there were some big plans in store for season five. "We're just getting started to start the next season, so I'm not really sure what's going to come, because it's sort of a surprise for all of us even," she said. "But I've heard Carly's getting a boyfriend, so that's exciting, and we're gonna have some more musical guests, some big, different musical artists," she said, noting that she'd love to get Katy Perry on the show. "There are a lot of different musical acts that I love, so it's fun whenever we get to have music in an episode."

Michelle Obama made an "iCarly" appearance earlier this month on a special episode that honored military families.

Are you excited for the fifth season of "iCarly"? Leave your comments below!