[1] The song is sung by a single–widower father, Caractacus Potts (Dick Van Dyke) to his two twin children ("Jeremy" and "Jemima").
The melody from this song was also used in counterpoint several times with the melody of the title song, "Chitty Chitty Bang Bang".
It is sung by "'Grandpa' Potts" and was also authored by the Sherman Brothers nearly thirty-five years after the song was originally written.
"Us Two" is also a short reprise crafted especially for the stage musical and written by the same writers.
It is sung in the Vulgarian dungeons by Jeremy and Jemima, just before "Chitty Prayer", which is a short reprise of the title song.