See Britney Spears Best Smiles

Britney Spears has changed her look many times throughout the years -- blonde, brunette, shaved head, bangs, center-parted and extensions. She has also had her emotional ups and down, with her husbands, kids, boyfriends, managers, parents and the paparazzi. There has been one constant through it all and that's Brit Brit's warm and winning smile!

As she inched towards her late 20s and early 30s, things leveled out and calmed down for the sexpot superstar both personally and professionally. She is a proud mom of two, is still putting out great dance music and continues doing her thang!

We've compiled our favorite shots of Britney and her infectious, enviable, toothy smile here. Her smile is so pretty and like a dose of sunshine in our day! And she has a really good dentist.

What an infectious smile! Brit was caught mid-laugh here.

Glossy lips, golden hair.

Mysterious, like a cheshire cat.

My, what nice teeth you have, Brit!

Who's making Brit laugh?

Look, Ma, two (dirty) hands and a purdy smile!

Simple, warm and inviting -- her smile.

Brit Brit in mom mode -- that's a natural, lit-from-within glow.

Looking at someone sideways, but with a twist.

It's a good thing Brit has nice teeth, since she flashes her chompers a lot.

On the go, hair in a bun, paparazzi following her, smile in tact.

Shades and a smile.

A mouthful of hair!

Brit may have been a brunette but the smile was still 14 karat.

With boys this cute, how can she not smile?