"Diamonds are a girl's best friend" kind of sounds like "Dead mice are a girl's best friend," so I can see how he got confused when choosing a gift for his estranged girlfriend. To make this story all the more special, reportedly, the gift was inspired by walking train wreck Courtney Love, who has denied knowing the singer.

 

Reportedly, Pete decided the nicest thing on earth he could send Kate was a brooch with a dead mouse inside it. My best friend for life, a source, said, "It's become the latest outlandish fashion statement in Manhattan but Pete is trying to emphasize how he feels without Kate - defeated, crushed and broken, like the dead animal."

 

And apparently, the "fashion statement" was actually started by Courtney Love, who gave one of the hideous things to someone named Jason Preston, who wears it all the time:

 

I'm not easily ruffled by things that aren't personal affronts to me, but that's truly one of the most horrifying and disgusting things I have ever seen. I would actually get a restraining order against anyone who sent me that, once I regained composure and stopped screaming and crying, as I quite like mice of the living variety.