Joan & Melissa Sharpen Claws for Oscar Fashions

The Academy Awards red carpet represents the ultimate in Hollywood fashion, but just because stars like Jennifer Lawrence and Jessica Chastain will wear the best of the best, that doesn't mean that Joan and Melissa Rivers aren't sharpening their claws…. Meow!

Pics: The 15 Oscars Dresses of All Time

Joan and Melissa are all fired up for their E! Oscar Fashion Police special on Monday, and from Jennifer and Jessica to Kerry Washington and Naomi Watts, they're giving ET a preview of what's in store – both positive and negative. Look out!

Related: Get ETonline's Complete Oscar Coverage

Watch the video as they also set their sights on paparazzi favorites, including Kim Kardashian.

You can also look for the feisty pair on Joan and Melissa: Joan Knows Best, premiering Saturday night on WE tv.