MetaFilter reports on quite an, um, interesting hobby:

It seems that this gentleman [YouTube videos] bought a set of musical robots from the defunct Showbiz Pizza restaurant chain. This gent has been reprogramming the robots to sing recent hit songs, rather than the '60s Motown hits they sang originally. He then takes video of these performances, and posts it on YouTube. I guarantee this version of Evanescence's Lithium will haunt your dreams (or, perhaps, make you hurl).

This was a bit disturbing for me...