> Dean's well-established canonical inability to sing

This isn't well-established canon, merely well established fandom myth. Fandom is apparently unable to judge whether a person is on pitch when there's no backing track. #whatswrongwiththis?https://www.youtube.com/watch?v=9ZOEfYvA7Fw

> How do we feel about Cas and Dean's wee tiff?

I'm mortally afraid it's setting up future Destiel fan service : /