I had no idea this was happening, but it turns out that Flash series regulars Jesse L. Martin (Det. Joe West), Carlos Valdes (Cisco Ramon), and Rick Cosnett (Det. Eddie Thawne) have been collaborating on a musical short film that's currently being funded on kickstarter. Recently they received a donation from popular nerdlinger Joss Whedon:

 

 

Naturally, the three TV stars had to produce a "Thank You" video and the result was this harmonious acapella version of "The Ballad of Serenity" aka the theme song to the most beloved single season of television ever produced.

 

 

I think we all knew about Jesse L. Martin's history as a Broadway performer, but who expected that the men who will one day become Vibe and Zoom had the pipes as well?