"Gotta Dance!" — Imagining Musical Episodes for "Girls," "Modern Family" and More

By Benjamin Solomon
09 Mar 2014

Nathan Fillion

"Castle," ABC

Why this show: Because in its six season, "Castle" seems ready to pull a ratings stunt like a musical episode (the show has yet to be renewed for season seven). And because star Nathan Fillion was awesome in Joss Whedon's "Dr. Horrible's Sing-Along Blog."

Possible plot: "Castle'"s newest book is being turned into a musical. But when the actors start turning up dead (cue Neil Patrick Harris reunion!), Castle and Beckett must find the murderer before opening night.

Odds: Medium. The show's cast has already proved they can sing and the show is no stranger to cross-over projects.