In this Swing Time clip, Lucky, Astaire, saves Penny's, Rogers, job by showing how much she has taught him.
The first true dance number with the two, the other being with Fred fumbling and pretending to be a terrible dancer. Both scenes, however, go to the same song, Pick Yourself Up, this scene without lyrics and much more lively with the other more calm, with lyrics, between the two.
The amazing scene in Tim Burton's Beetljuice movie with Delia (Catherine O'Hara) forced by ghosts to sing the Banana Boat Song while everyone dance around the table