Sound! Euphonium (2015)

S1E17 Rock Star in the House

Jesse McCartney arrives at the Tipton Hotel, prompting Maddie, London, and Zack to sneak into his room. Zack gathers up some of Jesse's used belongings with plans to sell them later. Meanwhile, Cody is gearing up for a science fair and gets some assistance from Arwin to prepare for the event.