Nightcat was an aborted attempt on the part of Marvel Comics to create a real-world character that would also star in its comic books.
Portrayed by Jacqueline Tavarez, Nightcat was to be both a comic book superhero as well as a real-world singer. The experiment got as far as the release of one comic book and one music CD before the plug was pulled. In the comics, Jacqueline gained cat-like powers and used them to fight crime.