NICOLE RICHIE - RICHIE'S 90210 RAT OBSESSION

NICOLE RICHIE is such a big fan of hit teen drama BEVERLY HILLS, 90210 she has named her six rats after the show's stars - much to the chagrin of TORI SPELLING.

The daughter of soul star LIONEL gave best friend PARIS HILTON a rat named after Spelling, and word quickly got back to the actress - who played DONNA MARTIN in the hit show.

Richie says, "I gave Paris Hilton a rat called Tori Spelling for Christmas, and Paris loved her. I told Tori about how I named my rat after her and (she) tried to pretend it was funny, but I could tell it hurt her feelings.

"Tori felt I think her face looks like a rat's, but I actually own six rats and I named each after a character on Beverly Hills, 90210, like SHANNEN DOHERTY and LUKE PERRY. My mother freaks out about my rats and is always trying to make me get rid of them because I am obsessed with them, but I love them and so does Paris.''