See how Kat's hairstyles have changed over the years—she is definitely one lady who's not afraid to take a risk!

 

Long and Wavy

 

 

Shortly after ending her American Idol stint in 2006 (where she came in 2nd place!) McPhee rocked this fun look, pairing her long, wavy locks with hoop earrings.

 

Mid-Length and Wavy

 

 

She later opted to keep the waves, but cut the hair a little shorter — and she still looks fabulous.

 

Long and Straight with Bangs

 

 

At a movie premiere she straightened her hair and decided to try bangs. She also mixed it up by adding some light brown highlights.

 

Wavy with a Side Part

 

 

McPhee glammed up for this red carpet event, wearing her hair over her shoulder along with a sultry side part.

 

Short and Platinum Blond

 

 

Going from long and dark brown to cropped and bright blond, she made the ultimate hair switcheroo — and she pulled it off flawlessly.

 

Blond Bob

 

 

She continued to show her hair versatility by keeping the blond color, but this time she wore it in a cute bob.

 

Back to Brown

 

 

The natural brunette went back to her dark roots and showed off her great features with this sweet, pulled-back updo

 

Brown Bob

 

 

McPhee rocked a summery look at this event, keeping her hairstyle short and sweet.

 

Dark Brown and Shoulder-Length

 

 

Here's McPhee's look today for her new show, Smash. She's returned to her original dark brown wavy hair, but this time with a great shoulder-length cut.