Camille Grammer, Brooke Mueller & Kyle Richards Celebrate Kathy Hilton’s Birthday [PHOTOS]

Kim & Kyle
The Richards sisters on the red carpet.
Hot stuff!  Look out, cause Brooke Mueller’s ready to get her tribal gear on.  Wearing a navajo cardigan, cowboy hat and lots of turquoise jewelry, the recently arrested/rehabbed reality star stepped out of her Mercedes at Il Cielo in Beverly Hills today (March 16th) to celebrate Kathy Hilton’s birthday.

Kathy was instrumental in getting Mueller help on The World According to Paris, talking her through a bad night, then sending her off to rehab.  Unfortunately, Mueller was arrested last December for assault and cocaine possession in Colorado.

Also putting on the ritz for Kathy’s birthday party were Kyle Richards, Camille Grammer and Nicky Hilton.  You gals look sensational.  And by sensational, I mean nouveau riche.