Tina Fey is one of the funniest women in Hollywood, and she's left her mark on the big and small screens, as well as our hearts.

The actress turns 44 on May 18th, and she looks better than ever. Best known for her work as both a writer and performer, she was the first female head writer on the sketch comedy show, Saturday Night Live. She joined the show as a writer in 1997, and just two years later was asked to become head writer. She then stepped onto the screen in the role of Jimmy Fallon's co-anchor for Weekend Update, becoming possibly the most beloved host of the segment.

In 2006, Tina left SNL to pursue her NBC comedy "30 Rock," which she had started to produce in 2003. The comedy was loosely based on her experiences at SNL, and was a huge success. The series just ended in 2013, and through the years Tina received countless Emmy, Golden Globe, Screen Actor's Guild and Writers Guild Awards for her work on the show.

She has written a book, Bossypants, which topped the New York Times Bestseller list for 5 straight weeks. If you haven't read it, you need to -- it's one of those can't-put-it-down books that will have you laughing from the first page until the last.

Tina was the youngest ever recipient of the Mark Twain Prize for American Humor in 2010, deservedly so. She's married with two children, and gives her time to charities such as Autism Speaks and Mercy Corps. She's hilarious, talented, and giving -- what could possibly make us love her more?

In honor of her birthday, we've taken a look at her style transformation through the years. While she certainly loves black and simple silhouettes, she also fosters a love for Oscar de la Renta, and we can totally relate.

Click through the gallery to see this funny lady's fashion sense!