Happy Birthday, Jennifer Aniston! Real-life proof that you only get better with age, the low-key star turns 44 today and has never looked better.

Though her career and personal life have evolved quite a bit over the years, her chic, no-fuss style has stayed the same. The former Friends star has remained loyal to the sophisticated solids and tailored silhouettes that have held her place as one of Hollywood’s consistently best-dressed stars.

So in honor of Aniston’s birthday, we’re celebrating her style over the years, with a look at her 15 best looks to date.

From ethereal gowns to sleek black and navy gowns and stem-showcasing minis, Aniston knows what works on her body and with her style.

Check out the birthday girl’s 15 best looks over the years.

Which of Aniston’s looks is your favorite? Share your picks below.

Kate Moss celebrates 39 years of amazing style today — though she’s barely ages since we first met her as a waifish Calvin Klein model in her ’20s.

The blonde supermodel launched the ‘90s heroine chic look during a time when curves were all the rage, and was one of the first models to become just as famous for what she wore off the runway as the clothes she modeled on the runway.

Model, muse, mom and now designer, Moss is truly a style legend, and in honor of her birthday, we’re celebrating her fab fashion over the years.

Whether she’s trudging through mud in cut-offs and wellies at Glastonbury, running to an appointment in skinnies, motorcycle boots and a Chanel jacket, donning a fur coat and stilettos while pushing a stroller, or dressed to the nines for the red carpet or the front-row at fashion week, Moss seems to launch a trend every time she steps out.

The model has even parlayed her fashion sense into a career, consulting for TopShop and designing collections for Longchamp among other brands.

Unlike most models who retire before their 30th birthday, Moss isn’t still one of the runway’s most in-demand models, and the ageless beauty even occasionally surprises us with a runway return.

In honor of Moss’ birthday, we’re taking a look back at her most stylish looks ever.

Happy birthday Kate Moss! Hope it’s ever bit as fabulous as you!

Click through the gallery to see Kate Moss’ most stylish looks throughout the years.

Which of Moss looks is your favorite? Share your picks in the comments below.

Happy birthday to Anne Hathaway!

After finishing her 20s in style, debuting a chic new pixie cut and walking down the aisle in a gorgeous one-of-a-kind Valentino wedding gown, the Les Miserables star kicks off a new decade, turning 30 today.

Hathaway has truly become a fashionable force in recent years, with a slew of best-dressed winning red carpet looks that have her headed toward style icon status.

So in honor of the actress’ 30th birthday, we’re celebrating her 30 most gorgeous looks.

Though the newlywed rocks a cool downtown style by day, Hathaway goes all-out glam on the red carpet in jaw-dropping confections by some of Hollywood’s most coveted evening-wear designers, including two of her faves — Valentino and Marchesa.

And though she tends to go for timeless, feminine styles, Hathaway always opts for a look with something special. To host the the 2011 Oscars, she really showed off the breadth of her style, donning an array of hits, one more stylish than the next.

As she reached the end of her 30s, she lived out her very own real-life fairytale in a couture Valentino lace wedding gown with a hint of pink along the hemlines that instantly sent brides-to-be clamoring to emulate the gorgeous gown for their own nuptials.

We can’t wait to see what the 30-year-old wears as she hits the red carpet next to promote Les Miserables before heading into another fashion-packed awards season — another year older and more stylish than ever.

Check out the birthday girl’s 30 best looks. Then share your favorite.

Get all the details on Hathaway’s Big Sur nuptials — and gorgeous Valentino wedding gown — in the video below.