Left 4 Dead parody

[SonicXVGfan5602]

I watched a Left 4 Dead parody, in which the Rocky Horror Picture Show's "Time Warp" song was sung. But now, I can't find it! Can someone give me a hand?
I tried to research it, both in the search bar and on Google, but none of the options were it. I would vastly appreciate the help. Thanks!

[Domo]

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[SonicXVGfan5602]

Sorry, mate. There's a specific one that sings the Rocky Horror Picture show in it, with a smoker singing the lead with a witch, and a host of background zombies.

[CTM222]

• Unpublished Submission

[SonicXVGfan5602]

Hey thanks mate! Didn't think this one was it, but looked and was. Thanks again!
Hooray for great films!