Dr Horrible's Sing-Along Blog - Horrible Credits
Dr Horrible's Sing-Along Blog - A Man's Gotta Do
A Mans Gotta Do
Neil Patrick Harris, Felicia Day & Nathan Fillion
A Man's Gotta Do
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Dr. Horrible's Sing Along Blog
My Freeze Ray
Dr. Horrible's Sing-Along Blog
Castle Theme Song Nathan Fillion Stana Katic