Curious to know how celebrities squeeze fitness into their daily lives? Want to know the secrets of the stars? Bi-weekly our That's Fit fitness expert Fitz sits down with the celebs we want to know more about, and digs out their great and not-so-great methods to staying healthy.

Kellie Pickler has gone through a wicked physical transition of the past few years. When she auditioned to appear on American Idol, at five feet tall, she weighed in as a featherweight 100 pounds. But by the time the competition and Idol tour was over, she had packed on 28 pounds in less than a year. That's a lot of weight on a very little person. The weight gain made Kellie feel bad, but one fellow celebrity (whom most people love and adore) helped her see the light and lose the weight. Read on to hear her story.

Fitz: Your body has changed a ton since you landed in the spotlight. Tell me about that.

Kellie: Oh my goodness! My body has made a big transformation. When I auditioned for Idol I was only 100 pounds and kind of riding on "the young card." Although I exercised a ton, I think I stayed thin because I was ... young! But my eating habits on Idol and the during the tour became terrible. We were always eating fast food on the road and having late night munchies. I gained 28 pounds in less than a year!

Fitz: How'd you take it off?

Celebrity Fitzness Report: Kellie Pickler(click thumbnails to view gallery)

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I've spent a lot of time with various celebrities this year and have poked them all about their health and fitness habits. Two of the most inspiring were not the young hard bodies we see on the covers of tabloid magazines each week. No, these two celebrities have healthy capable bodies, which have endured many years of living.

The woman I speak of, at 57 years old, is every bit the blond bombshell she was known as 30 years ago. She works out six to seven days a week, mixing up her workouts with: kickboxing, yoga, water aerobics and climbing her steep driveway known as "butt hill."

The man who stood out is in his late 60s and still plays basketball and baseball on a regular basis. The guy has probably been in every hit sitcom in the past three decades and told me that the highlight of his year would be if I could hook him up to throw the ball around with the Heisman Trophy winning University of Florida quarterback, Tim Tebow.

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I am a sucker for expensive hair care products. Pricey shampoos and conditioners, any kind of serum that promises shiny results and expensive visits to the salon for a new color are all part of my hair routine. But I also know that fancy packaging and a big price tags don't necessarily guarantee quality, and that there are plenty of inexpensive alternatives.

Many of these can be found at home -- in your refrigerator. A couple of years ago I embarked on my only little adventure wherein I tried out a few of the food products that I'd heard were great on your hair to see if they really worked. I was surprised and impressed that most of them did! Although I didn't stick with any of them (lets face it -- hair that smells of mayo isn't as enticing as hair that smells like Aveda), I still think they're worth giving a try if you're curious.

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I am a hair dye enthusiast -- I love to color my hair. While some do it to cover gray or because they've always dreamed of being a blond, brunette or red head, I do it because I love that it's a non-permanent way to considerably alter the way I look. Well that, and also due to the fact that my normal hair color is an extremely unappealing shade of mousy, ash-brown.

While I'm happy to shell out a fair-sized amount of cash to have my hair done professionally for special occasions, I can't afford to pay expensive salon prices every time I decide I need a change. I imagine this is the case for most of you fellow dye fans out there. I know that many hairdressers will try to persuade all of us that home hair-coloring kits will forever destroy our hair, but I also know of a few who will admit that many of the products currently on the market do a pretty decent job at a much lower price.

Having said that, if you do decide to try the DIY method, it is important to do a little research beforehand as the onus is on you to get it right. A botched at-home job will end up costing even more when you have to go to a professional to fix the splotchy, orange mess you've made of your former crowning glory. With this in mind, it's important to think about the four things listed here before you start the process.

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