iparty with Victorious

Carly is in a brand new relationship with a boy named Steven. Sam goes online to TheSlap.com and sees Steven with another girl by the name of Tori Vega and tries to inform Carly that Steven is cheating on her, but Carly refuses to believe her unless she has proof, saying "everyone is innocent until proven cheaty". The group, including Gibby, decide to drive down to Los Angeles and crash a party at Kenan Thompson's house to find out if Steven is really cheating on Carly. But before they arrive at the party, they get disguises for the party in case anyone recognizes the iCarly gang (which would cause major distractions). They stop at the house of Moni, who was Spencer's past girlfriend and is also a celebrity makeup artist. Moni, though still angry at Spencer for backing a car over her, transforms them into different looking people. Carly catches Steven with Tori, and she sees him giving Tori the same exact charm bracelet that he gave her and telling her, "it's one of a kind, just like you", which he also had told Carly at the beginning of the episode. Tori then tells Steven that she loves him and Steven says "I love you too" making Carly devastated. Tori finds Carly and her friends at the party, now in their normal looks. Carly, Tori, knowing that Steven's cheating, together with Sam, Freddie, and Kenan come together with a plan to expose Steven's bad nature live on iCarly in front of a million people in a small closet where Tori and Steven originally planned to have their 100-day kiss. Steven angrily leaves the closet while the iCarly gang party inside, with the graphic "Random Humiliation" flashing on the screen. The whole time this is happening, other events occur, including Andre trying to get some people to calm down and/or leave, as he thought there were only supposed to be a few people at this party, though failing, while getting chased by a mysterious dude in a panda suit. Spencer with Jade and Beck, friends of Tori, and one of Tori's teachers, Mr. Sikowitz, have an awkward encounter in a hot tub. Trina, Tori's sister has trouble babysitting two younger children for a friend while attending the party. And, Rex has a freestyle rap battle with random people in the audience, though eventually getting beaten by Sam.

from:http://en.wikipedia.org/wiki/ICarly_(season_4)