Those wacky Germans are at it again, this time they've invented "porno" karaoke:

Porno karaoke is similar to traditional karaoke - but, instead of standing in for Whitney Houston or Frank Sinatra, contestants belt out the soundtracks of adult movie stars.

I'm just happy I could spell "karaoke" without having to look it up first. This'll be one I leave gramma and baby at home for...