Final answer:
The question pertains to a scene from a TV show or film involving characters Twyla and Jocelyn singing a song. Without additional context such as the show or film title, it is not possible to provide the specific song name. Show episode guides or fan sites usually offer this kind of detail.
Step-by-step explanation:
The question appears to reference a specific scene from a television show or film where characters named Twyla and Jocelyn are singing a song. Without more context, such as the name of the show or film, it is challenging to provide a definite answer to which song they are signing. Typically, this would involve recalling the scene from the show or looking up the episode's details, which would involve a soundtrack listing or a script reference.
If we are referring to the popular TV series Schitt's Creek, there is a scene where the characters Twyla and Jocelyn perform together. To provide an exact answer, it would be necessary to know the episode or the context of the scene. Often, shows like Schitt's Creek have detailed fan sites and episode guides where this information can be found.