In Disney's Mary Poppins, Mary and Bert sing “Jolly Holiday” while dancing with animated penguins.
The sequence begins when Bert, a street artist and chimney sweep, brings Mary and the children into one of his chalk drawings. The live-action characters then interact with animated animals, including a group of dancing penguins who serve as waiters.
“Jolly Holiday” was written by the Sherman Brothers, Richard M. Sherman and Robert B. Sherman. The song appears more than once in the film, including a later reprise associated with the park outing and Mary Poppins's return to the Banks household.
The scene is notable for combining live-action performance with hand-drawn animation, a technique that helped define the film's visual identity. “Supercalifragilisticexpialidocious” is another famous Mary Poppins song, but it accompanies a different sequence involving a word-game and dance number.