Looking slim and sexy in a full-length snakeskin wrap dress, Kirstie Alley stopped by the Paper Source in Beverly Hills to load up on Christmas wrapping paper and glittery gift boxes, on Wednesday.

Ever since Alley became a contestant on Dancing With the Stars last year, she's been working hard on her fitness, and it's definitely paying off.

The former Fat Actress star lost more than 100lbs by simply dancing, and she's pledged to dance for 100 consecutive days to help her fans get fit too.

Alley recently posted on her blog:

"I'm doing a hundred days of dance, starting on January 1. What you do is you join in, and whether you dance for 30 minutes or an hour, you dance for 100 consecutive days and I'll video myself dancing, like, for five or 10 minutes and I'll hold a newspaper up so that you can see the date ... so you know I'm not cheating. I want everybody in the world to join in on this, it's a fun way to stay fit."

We're in!

Twitter

Bye, bye blonde!

Channeling her former days on Cheers, a newly slimmed-down Kirstie Alley decided to revisit her 1980's roots by dying her blonde hair a rich chocolate brown. We like!

The former Dancing with the Stars champ shared a pic of her new 'do, after going dark at the Sally Hershberger salon.

Alley Tweeted:

"OK..I have dark brown hair..taking it out for a spin tonight...my verdict isn't in on it yet...I'll send some pics..;)"

But this isn't the only change Alley has gone through this year! "I've lost 100 pounds," she told Entertainment Tonight in September. "I feel like I'm back in my element -- I honestly didn't even realize what I looked like."

Kirstie Alley has reportedly lost 100 pounds since competing on the last season of Dancing With The Stars. The 60-year-old, who recently walked the runway in NYC Fashion Week, says she lost the weight through diet and exercise.

But The National Enquirer is running a story this week called "Kirstie Bulimia Fears," implying that the star is bulimic.

Alley got suing mad on Twitter over the report, saying she is not bulimic and plans to take legal action. She said:

"Bulemmia, is a serious sitiation not to be taken lightly.. it can cause death..this accusation is degrading 2 those who from suffer it. ... I smell a big ole lawsuit ... This story will not run in UK.. just watch.. in UK the source must be REAL and named....Enquirer, Im coming for u this time..get ready!!"

Alley says she is now a size 6.

Eka Halim, Courtesy of Zang Toi

Kirstie Alley looked super sexy for her debut on the runway at New York's Fashion Week!

The model, 60, sported a '60s-inspired hairdo: the beehive!

She walked the run way for Zang Toi, a Malaysian designer she's known since 1993. Kirstie loved the clothes so much, she left the show wearing some of them!

Funny lady Kirstie seemed a bit nervous that she wouldn't be able to keep her Vogue face, Tweeting to her friends, "DO NOT make eye contact!!!! I will start giggling and fall on my well dressed a**.. Look away!"

Keep reading for more pics of Kirstie on the runway ...

Legacy Properties/Sotheby's International Realty

Holy pink and peach!

Kirstie Alley has put her Maine estate up for sale for $2.35 million -- which will apparently buy a person a lot of floral patterns!

The home is 3,371 square feet and has five bedrooms and four-and-a-half bathrooms. She bought it in April 2003 for $1.15 mil. The house sits right on the beach, so we're guessing the flowers feel at home in all that nature.

Apparently now that Kirstie did Dancing With The Stars she's trimming down every part of her life! Wonder if it the place comes fully furnished ...

See all the pics in our gallery below!

Kirstie Alley is shrinking before our eyes!

The gorgeous Dancing With the Stars alum stepped out in a bright purple dress that perfectly accented her newly-svelte frame, as she made her way into the David Letterman Show on Monday.

Before heading out the door, Alley hurriedly Tweeted: "Madly scrambling to get ready to confront my estranged lover..David Letterman…I shoot it tonight. It airs Thursday. I gotta zip outta NYC."

Since finishing at an impressive second place in the DWTS competition this year, Alley has kept up her rigorous workout routine, and it's definitely paying off!

A far cry from the Fat Actress, circa 1998!

Find out what Alley Tweeted when she left the David Letterman Show last night, after the jump ...

Who's that lady?

We haven't seen Kirstie Alley look this thin and fabulous since her days on Cheers. The Dancing With The Stars finalist has slimmed down so rapidly; we can hardly believe our eyes!

Alley looked beyond thrilled to have ditched those horrid muumuus she used to wear for some sexy, figure hugging outfits and sky high Christian Louboutin heels.

The former Fat Actress was on her way into her hotel in NYC, no doubt gearing up for a hot night on the town.

Work it girl!

Rob Rich

But it was all in good fun! Kirstie Alley, who sported a large blade, joined Top Chef season three winner Hung Huynh for EMM Group's barbecue at The Estate in Sag Harbor.

Hung is gearing up for the opening of Catch .. a new restaurant in which he'll be the Executive Chef.

The former DWTS contestant took part in a cook-off, and was actually named one of the winners. Is there anything Kirstie can't do? Loves it!

See Kirstie flaunting her fabulous form, alongside her daughter ... after the jump.