The band goes to a Mandy Moore concert, but QT is grounded. He sneaks out and goes to the concert anyways. The rest of the band comes home only to find that QT isn't in his room. QT then comes home and tells them that he went to the concert, met Mandy Moore and invited her to dinner at their home. QT then brings "Mandy Moore" home, who ends up being a fan he met and not the real Mandy Moore. QT asks if she could perform with them in a hospital for sick children. The gang go crazy and tries to find a way to not let her sing. Before the show, QT asks "Mandy Moore" to sing a verse of their song. She then sings terribly and QT leaves. QT then meets the real Mandy Moore. Mickey then manipulates the fake Mandy Moore, and they go out and perform.