LOS ANGELES (AP) — CBS says pop star Taylor Swift will appear on an episode of "CSI: Crime Scene Investigation."

Swift will play a teenage girl whose family manages a seedy Las Vegas motel and who undergoes personal changes that have tragic consequences. CBS didn't announce the air date for the "CSI" episode.

The 19-year-old country crossover singer was 2008's best-selling artist, with more than 4 million albums sold. Her sophomore effort, "Fearless," debuted at No. 1 and includes the hit single "Love Story."

"CSI," which airs 9 p.m. EST Thursday, says goodbye this week to star William Petersen. Laurence Fishburne has joined the series as a new forensics investigator.

© 2009 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.