Very good work!
The editing you did to fit the lyrics with the movie particularly the instances where the lyrics matched what the actors were saying.... superb.
I also really liked the interweaving of Space Seed and TWOK footage. Well done.
I was not crazy about the musical style of the song, but that grew on me as I watched and by the end I was hooked.
I also got pulled out of things a bit when you sped up the playback, but that's a minor nitpick.
Thanks for sharing!