(NOTE TO EDITORS: The following episode of CSI: CRIME SCENE INVESTIGATION has been substituted for the one previously scheduled for April 13).

THE CSI TEAM ENTERS THE WORLD OF RAP MUSIC IN ORDER TO INVESTIGATE THE DEATHS OF THREE TEENAGERS KILLED WHILE WORKING FOR RIVAL RAPPERS, ON "CSI: CRIME SCENE INVESTIGATION," THURSDAY, APRIL 13

Travis Barker And Shanna Moakler ("Meet the Barkers"), Page Kennedy ("Desperate Housewives") And Rick Gonzalez ("Old School") Guest Star

Rapper Method Man, Member Of The Wu Tang Clan And Star Of The Television Series "The Wire," Also Guest Stars

The Original Song "Snitch" From Eminem Prot�g� Obie Trice Plays During The Episode

"Poppin' Tags" -- Grissom and his team investigate the murders of three teenagers involved in a rap music rivalry, on CSI: CRIME SCENE INVESTIGATION, Thursday, April 13 (9:00-10:00 PM, ET/PT) on the CBS Television Network. Bryan Spicer directed the episode from a script by Dustin Lee Abraham.

Travis Barker and Shanna Moakler ("Meet the Barkers"), Page Kennedy ("Desperate Housewives") and Rick Gonzalez ("Old School") guest star. Rapper Method Man, member of the Wu Tang Clan and star of the television series "The Wire," also guest stars.

The original song "Snitch" from Eminem prot�g� Obie Trice plays during the episode.

The investigation of three teens killed while promoting a rapper's new album leads the CSI team into the world of rival rappers Jessie "Dollar" Cleveland (Kennedy) and Hi-Def (Barker), each of whom will do anything to promote themselves and destroy the other. The CSI's suspect that Dollar's sidekick "Drops" (Method Man), Hi-Def's right-hand woman J-Lady (Moakler), or Marcus, a Las Vegas auto dealer (Gonzalez), may hold the key to solving the case.

Gil Grissom: William Petersen
Catherine Willows: Marg Helgenberger
Warrick Brown: Gary Dourdan
Nick Stokes: George Eads
Captain Jim Brass: Paul Guilfoyle
Sara Sidle: Jorja Fox
Greg Sanders: Eric Szmanda
Dr. Robbins: Robert David Hall
David Phillips: David Berman
Sophia Curtis: Louise Lombard
Hodges: Wallace Langham
Bobby Dawson: Gerald McCullouch
Office Mitchell: Larry Mitchell
Det. Sam Vega: Geoffrey Rivas
Mark Trent: Vincent Duvall
Marcus: Rick Gonzalez
Jeremiah: Antwon Tanner
Grandpa Calvin: Jeris Lee Poindexter
Morris: Michael B. Jordan
Troy Thompson: Steve Rankin
Concierge: Jenica Bergere
Jessie "Dollar" Cleveland: Page Kennedy
Marsha Kendric: Ivonne Coll
J-Lady: Shanna Moakler
Hi-Def: Travis Barker
Drops: Method Man aka Clifford Smith
Ben: Charles Duckworth
Dante: Khleo Thomas
Tisha: Katerina Graham
Dr. Leever: Aasif Mandvi

RATING: To Be Announced