POP babes Britney Spears and Jessica Simpson stepped out at a Grammy party on Monday night.

And while new mum Britney enhanced her reputation as a dodgy dresser with an unflattering black outfit, sexy Jess looked radiant in a fashionable see-through frock.

Just months after her split from husband Nick Lachey, blonde Jess appears to transformed herself into one of Hollywood’s most fashionable women.

Other celebs at the bash included Tom Cruise, Shannon Elizabeth, Eliza Dushku and Christina Milian.