How is “on song” used?

In Ralph Breaks the Internet (2018), one line is: “Come on, song, come on.”

Which movie is “on song” from?

The clip at the top of this page is from Ralph Breaks the Internet (2018).

Modismo

working or performing well

informal · Se oye en 388 películas

Definiciones del Oxford Advanced Learner's Dictionary, 9.ª edición

Come on, song, come on.

En 8 películas · n.º 1