Justin Bieber's Road to Manhood

Age of Innocence Switcheroo Unveil surprisingly competent hip-hop alter ego Shawty Mane.

A ''Growth'' Moment Get killed in an episode of CSI, thus allowing haters to live out treasured death-to-Bieber fantasy.

High-Profile Dating Rent out entire Staples Center to screen Titanic for Disney-star girlfriend.

Weathering a Scandal Be accused by a 20-year-old California woman of fathering her Bieb-y after backstage dalliance. Voluntarily take paternity test; suit dropped.

Ch-ch-ch-changes It cracks! Reveal deeper voice on Christmas album.

Show That Sexy Side Flirt lasciviously with then-41-year-old Mariah Carey in ''All I Want for Christmas'' video duet.

Flaunt Expensive Tastes/Famous Friends Stop by BFF Ellen DeGeneres' show on 18th birthday; be ­presented with $100,000 car.

Pick a Protege Cosign fellow ?Canadian Carly Rae Jepsen to U.S. label deal; ''Call Me Maybe'' pandemonium ?to come.

Image Rehab Replace defining hairstyle with new defining hairstyle.

WWJTD? Nakedly evoke Justin Timberlake on 2012 single ''Boyfriend,'' to general acclaim.

Go Your Own Way Don't seek United States citizenship, because Canada has awesome health-care system. (GANGSTA!)

The ''Adult'' Humor Play Appear in SNL's 100th Digital Short; get grinded on by topless Jon Hamm.

You're a man, Justin Bieber!

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