Hilary Duff - who is set to headline her own series, Barely Legal - will appear in an upcoming episode of The Ghost Whisperer.

As first reported by Michael Ausiello, the young actress will portray a "beautiful woman of mystery" who may or may not have been involved in someone's death.

How did this guest-starring stint come about? Duff and star Jennifer Love Hewitt are real life best friends.

BFF alert! Hilary Duff will appear alongside Jennifer Love Hewitt on a future episode of The Ghost Whisperer.

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.