HOLLYWOOD, Calif. — Rumer Willis is about to make her mark on a famous zip code.

The 20-year-old daughter of Bruce Willis and Demi Moore is coming to The CW's "90210" as a guest star, according to Access Hollywood.

A CW rep told Access that Willis will star in at least one episode of the breakout series as a lesbian named Gia. She'll join the school's newspaper staff, where she'll work alongside Navid (Michael Steger), Adrianna (Jessica Lowndes) and Silver (Jessica Stroup).

Willis is the oldest child of the former Hollywood couple's three daughters. She made her acting debut in 1995 when she starred alongside her mother in the movie "Now and Then."

She has also worked with her famous father, having appeared in the movies "Hostage" (2005) and "The Whole Nine Yards" (2000).

Willis' past television credits include "CSI: NY" and "Medium."

Also see:  Rumer Willis Gallery