"Orchestra" is the seventy-ninth episode of The Suite Life of Zack & Cody.
Cody becomes jealous of the new violinist Sergay, a Russian prodigy. When Sergay starts to flirt with Barbara, Cody's girlfriend, he becomes jealous and determined to win her back at the orchestra's performance at the Tipton. Meanwhile, London wants to learn the business of the Tipton hotel, so she shadows all the jobs in the Tipton, including the bellboy and maid, and causes chaos for the guests and all the employees. But when she goes for Mr. Moseby's job, she realizes all the nasty things the workers at the Tipton have to say about her.
- This episode was part of Disney Channel's November 2007 "Night of Premieres".
- Sharon Jordan as Irene the Concierge, Sophie Oda as Barbara
- Ashley Tisdale as Maddie Fitzpatrick