Those Freaky McGuires

"Those Freaky McGuires" is the fortieth episode of Lizzie McGuire.

Synopsis
In this Freaky Friday-inspired episode, Lizzie and Matt switch bodies for a day. Matt (in Lizzie's body) and Lizzie (in Matt's body) go to each other's school and end up in amusing situations. They both solve each other's problems at school but the next day, they return to their normal selves, leading Lizzie to wonder whether it was all a bad dream.