Alvin and the Chipmunks slowed down to a normal pitch is truly nightmarish

The Chipmunks meet David Lynch.

The music from Alvin and the Chipmunks, who are singers in the animation, was played loudly in Bournemouth Coach Station (Rex Features)

What happens when you slow down the voices of Alvin and the Chipmunks? Nightmares. That's what happens. 

YouTube channel owner Greg Danner has slowed down a clip from the 2007 film for presumably experimental purposes, and the results are truly bizarre. Featuring the film's human compatriot Jason Lee sounding like the monster hiding under a child's bed, this clip makes the chipmunks sound (almost) normal. Normal for the dream sequence of a David Lynch movie, at least. 

As pointed out in the comments, the ideal way to experience this video is to hit the settings button and watch this at a 1.5x speed. That's the point at which it sounds almost exactly as it must have done while being originally recorded; with Justin Long, Matthew Gray Gubler, and Jesse McCartney providing those furry mammalian voices. 

Though this piece of information may have (miraculously) passed you by, the rodent buddies have a fourth film, Alvin and the Chipmunks: The Road Chip, out in UK theatres 12 February.