biebercsi4.jpgPhoto credit: Sonja Flemming/CBS

Justin Bieber isn't making his acting debut until next month, but we've got a sneak peek for Bieber fans!

As we previously reported, Justin will be appearing in several episodes of the hit show as bad boy Jason McCann, "a troubled teen faced with a terrible decision regarding his only brother -- a decision that leads him into an explosive confrontation with the CSIs."

We can't wait to see this good boy gone bad next month!