Ashlee Simpson and husband Pete Wentz will be guest starring in an episode of CSI NY. They will play Lia Wickfield and Chester Bryon, a criminal couple much like legendary duo, Bonnie and Clyde.

Their starring episode will air March 18th.

Ash and Pete are not the only celebrities that will be making a guest appearance on CSI NY this season. Also scheduled to appear is Rumor Willis, rapper Nelly and Craig T. David.