Tina Fey Turns 45: We Say Happy Birthday To '30 Rock' Star With 10 Of Her Finest Moments!

Tina Fey hits 45 today, which gives us an excuse to celebrate a woman at the peak of her career - funny, creative, popular and tireless, and someone who takes no prisoners when it comes to dishing out some shade.

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From her days as part of the writing team at 'Saturday Night Live' - at 29 she became its first female head writer - to her glorious putdown of Bill Cosby at the Golden Globes, Tina is peerless when it comes to delivering a devastating retort, armed with a grin and an eyebrow that can never be too high, and doesn't ever save herself as a target, either. By way of example, we give you these, just 10 of her best and biggest moments... and say, Happy Birthday, Ms Fey. We salute you!

Oprah's Cameo On '30 Rock'

10 Of Tina Fey's Finest Moments