Tina Fey rules. And she has rules.

They’ve guided the 38-year-old writer-comedian through marriage, motherhood, and a career that went into hyperdrive this fall, when her Sarah Palin impression convulsed the nation, boosting the ratings of Saturday Night Live and 30 Rock.

That's right. Between 30 Rock quotes and faux Sarah Palin videos, it's no wonder why Fey has officially arrived as America's comedic sweetheart.

In the January issue of Vanity Fair, Tina opens up about dropping 30 pounds years ago for Saturday Night Live, her mysterious facial scar, staying a virgin into her 20s, what she thinks criticism of her Palin impressions, and so much more.

Click to enlarge more Tina Fey pics below, and check out the full Vanity Fair article, penned by the New York Times' Maureen Dowd. It's a great read.