Pete & Ashlee to Guest Star on CSI: NY

Pete Wentz and Ashlee Simpson-Wentz

Evan Agostini/AP

updated 01/16/2009 AT 2:00 PM ET

originally published 01/16/2009 AT 2:40 PM ET

New parents Pete and Ashlee Simpson-Wentz have a new gig – a guest spot on CSI: NY, CBS confirms to PEOPLE.

“Ashlee will be playing ‘Lia Wickfield’ and Pete will be playing ‘Chester Bryon’. They are a ‘Bonnie and Clyde’-like couple,” a source tells PEOPLE.

Ashlee is scheduled to begin filming her scenes Friday. Pete is expected to start shooting the show sometime next week.

The popular CBS show has been a celebrity guest magnet, welcoming Craig T. Nelson, Rumer Willis and Nelly.

Entertainment Weekly’s Michael Ausiello was first to report the news.

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