It worked for Taylor Swift.

A year after the pop-country star successfully gave acting a go on CSI, Justin Bieber ensured that millions of people would be watching him get serious on the season premiere of one of the most-watched shows on TV.

So, check out Bieber on CSI, playing a two-faced teen who's fallen in with of those trouble-making, the Man's-out-to-get-us crowds, and tell us if you think the kid was convincing.

Justin Bieber Gets Serious on CSI
What did you think of the 16-year-old's dramatic debut?

(Originally published Sept. 23, 2010, at 8:41 p.m. PT)

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