List of fictional musicals

A fictional musical or fictitious musical is a non-existent stage musical that was created specifically for (i.e. within) a work of fiction such as a novel, film, TV series, play or even an actual stage musical. Strictly, the term does not refer to actual musicals based on fiction (i.e. as opposed to those based on real-life people or events) but rather to imaginary musicals that do not actually exist.

Other
One other oddity is that Bombshell, the mythical musical within the TV series Smash!, actually has had its songs released on a cast album, The Music of Smash!