Adding some peppy song and dance to shows that desperately needed it, Broadway's Jesse Tyler Ferguson and Broadway's Alan Cumming joined Broadway's James Corden to put some inappropriate musicals on TV.

The trio converted Game of Thrones into Spamalot ("weddings" conveniently rhymes with "beheadings") and Stranger Things into the rock opera you always felt it should be.

As far as musical bits on late night go, this one is the most impressive. Not only because of the production values, but because they ain't lip syncing.