It seems that Hilary Duff will add an air of mystery to her repetoire. According to Entertainment Weekly, Hilary Duff will guest star on the CBS drama, Ghost Whisperer.

Duff will apparently portray a "beautiful woman of mystery" who may be involved in a death. It wasn't clear when the episode with Duff's appearance would air, as of yet.

It was recently announced that Duff will star in the new NBC series, Barely Legal, a new series based on a true story of an 18-year-old California woman who passed the bar exam to become the state's youngest attorney.

UPDATE: (1/27/09 11 AM PST) CBS has just announced that Duff's guest-starring episode will air on Friday, April 10 at 8 PM ET on CBS.