I'm Metallica. No, I'm Metallica

Writ-happy lo-thunks Metallica are suing another band who decided to call themselves Metallica. Now, while we assume the non-fan-hating new Metallica were having a bit of a laugh, and they know they're, technically in the wrong, but the Most Humourless Men In Rock have gone in totally heavy-handed, threatening to sue them for lots and lots of cash. Why? How much could an artprank Metallica have cost Lars, seriously?

We wonder if the band are aware there are three Metallicas on the Band Registry at the moment - one plays metal; another - in a direct challenge to Lar's band - plays 'sucky' music. Now there the consumer could get confused.