March 18th, 2012
06:06 PM ET
Mekhi Phifer, Jaleel White and Cheech Marin will guest star on "Psych" this week as part of Gus' old a cappella group, who team up with Gus and Shawn to investigate the shooting of an at-risk youth program leader.
We certainly can't wait to see White and Phifer break it down with their moves and belt out some classics with Shawn and Gus.
Catch this rollicking episode Wednesday at 10 p.m. ET on USA.
Here's what else you shouldn't miss this week:
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