From the maker of 'Best Caroline Story' and the 'Lil' mentioned in Valve's 'Project Lil' (yes, I was sort-of-not-really in a Portal 2 commentary node! Woo!) comes a BROADWAY SPECTACULAR featuring the kindly lent voices of Bill Smedley and Mxylptk.
I wrote the song, edited the map in Hammer (it's PLR_Pipeline) and animated this in oh... about three months, most days after work. I've never had 3D animating experience so you should all definitely give Source Filmmaker a try, it's a beautiful, beautiful program which gave me much joy.
Extra thanks to Sgt Lulz for the resized ammobox and Grassangel for help with the titles.