Kaley Cuoco's Beauty Transformation

The actress wore dramatic highlights while promoting her role on 8 Simple Rules.

She hit the premiere of Shanghai Knights with a sleek pompadour.

Cuoco wore a quirky updo at the People's Choice Awards.

The Charmed actress hit the WB All-Star Party working face-framing layers and tapered fringe.

Cuoco joined the cast of The Big Bang Theory and wore her platinum hair in a sophisticated chignon.

The star wore a sleek center part and shimmery pale eye makeup at the Genesis Awards.

She added dimension to her blond layers with a deep auburn under-layer.

For the Golden Globes, the presenter sported an ultra-long wavy ponytail.

Cuoco played up her light eyes at the Emmys with a smoky shadow and lush lashes.

Cuoco channeled Bardot to host the People's Choice Awards-pairing black liner with light lipstick and tousled voluminous locks.

The actress sported pretty waves and a half-updo with a center part.

Cuoco wore her short hair in a voluminous pompadour to an ASPCA event.

The actress wore her short pixie cut shaggy while at the premier of The Wedding Ringer.

Cuoco wore her hair in a short, wavy lob to the 2016 InStyle And Warner Bros. 73rd Annual Golden Globe Awards Post-Party.

The Big Bang Theory star grew her blonde hair out into a lob, which she styled in loose waves.