[3] Woody arrives at Tony Figaro's barber shop in hopes of getting a victory haircut (a then-contemporary World War II reference).
Shortly afterwards, Woody's second and primary customer is a burly Italian construction worker who asks for the whole works.
Once Woody blow-torches the man's construction helmet off his head, he proceeds to lather his client's face, chin, mouth, and shoes while singing Rossini's Largo al factotum.
A chase throughout the barbershop ensues as Woody doubles the tempo of his singing, until the woodpecker corners the man in the barber's chair and proceeds to give him a shave and haircut at manic speed.
The man picks Woody up and slings him through a glass window and back inside the shop, where the woodpecker lands and is bopped by shaving mugs falling from a broken shelf.
[1] A parody of Gioacchino Rossini's 1816 opera of the same name, The Barber of Seville is noted for its uses of speed, timing, and music synchronization.