S4·E24 Pirates!

Wyatt gets the lead role in ""Jolly Roger,"" the school musical. Wyatt has a crush on his leading lady, Jessica, unfortunately she doesn't return his feelings. Lisa tries to make her feel differently, but magic goes awry, and the musical is brought to reality. Now the entire high school is filled with singing pirates and their prisoner, Principal Scampi. Not to mention the fact that they choose a new King, Chett. Not too long after the pirates are discovered, they break out of school in their ship and go about town singing and dancing.