Commentary! The Musical

Cast and crew of Dr. Horrible's Sing-Along Blog perform a musical commentary track as exaggerated versions of themselves. Cast and crew of Dr. Horrible's Sing-Along Blog perform a musical commentary track as exaggerated versions of themselves. Cast and crew of Dr. Horrible's Sing-Along Blog perform a musical commentary track as exaggerated versions of themselves. Cast and crew of Dr. Horrible's Sing-Along Blog perform a musical commentary track as exaggerated versions of themselves.