The robotic denizens of Portal 2's Aperture Science Laboratories aren't lacking for lung capacity. Their penchant for Disney-esque bouts of choreographed song provided gems such as "Still Alive" and the emergence of turret opera. British filmmaker Harry Callaghan assembled the research facility's finest for "This Is Aperture," a musical love letter to science's safest testing environment. Recognize the tune? It's from The Nightmare Before Christmas' "This Is Halloween" -- you know, one of those Tim Burton films released before he got a little too crazy with Johnny Depp. Check out the lyrically (and visually) masterful video below!