Jennifer Aniston (Jason Merritt/Getty Images)Allison Williams (D Dipasupil/FilmMagic)

Great style doesn't have an age limit.

Jennifer Aniston, 44, may be decades older than Allison Williams, 24, but that didn't stop America's sweetheart from rocking the same designer duds as the up-and-coming starlet on the red carpet. Check them out!

Britney Spears on April 14, 18, and 19 (INFDaily/Splash News)
Britney Spears is a woman who knows what she likes and commits to it, at least when it comes to fashion.

In a span of six days, the 31-year-old pop star wore three variations of the same outfit while out and about in Los Angeles.

Christina Hendricks before. (Kevin Winter/Getty)Hendricks after the cut. (Michael N. Todaro/WireImage)

It's stylish, versatile, and the Hollywood hair trend du jour … ladies and gentlemen, behold the new bob!

Christina Hendricks, Jennifer Lawrence, Julianne Hough, and Nikki Reed are just a few of the beauties who've chopped off their locks into a shorter -- but not so short that it's shocking -- bob style in recent weeks.

"The long bob, or 'lob' as it is more commonly called, is currently one of the most requested cuts in salons around the country," says Julia Papworth, an L.A. hairdresser and makeup artist whose celebrity clients have included Emma Roberts and Kendra Wilkinson.

Some TV shows and films are so stylized that they create a whole other world, particularly when it comes to wardrobe.

Baz Luhrmann's upcoming adaptation of "The Great Gatsby" promises to be one of those films. So much so that the movie, which comes out May 10, has already inspired a clothing line.

"The Great Gatsby" Collection at Brooks Brothers joins lines created for movies such as "The Girl With the Dragon Tattoo" and "Anna Karenina," and shows such as "Gossip Girl," "Downton Abbey," and "American Idol" in recent years.

Take a look at a few of the clothing lines that are available on store racks now.

The Great Gatsby (Warner Bros. Pictures/BrooksBrothers.com)

Selena Gomez for Adidas NEO (Adidas)Gomez for Adidas NEO (Adidas)
Just days after Justin Bieber tweeted a photo of the twosome cozied up (sparking rumors that they may have gotten back together), even sexier images of Selena Gomez hit the Internet — from her new Adidas NEO campaign, that is. From the looks of the shoot, one thing is certain: whether she's single or not, this girl is all grow'd up.

In the pics, the 20-year-old "Spring Breakers" star pairs the sporty sneaks with barely-there shorts and knee-high socks, the occasional pair of skintight jeans, smoldering eyes, and tousled hair. In other words, she's pretty much every guy's dream girl. Her poses vary between somewhat playful (blowing bubbles) to downright seductive (perched on a wall with a come-hither stare).

Kate Middleton (Splash News)Middleton (Getty Images)

Kate Middleton must be the envy of pregnant women everywhere, especially now that she's shed her coat!

Miley "Can't Be Tamed" Cyrus regularly raises eyebrows with her fashion choices.

Her cutoff shorts, high-waisted jeans, and ab-baring tops are often called into question. But recently, the 20-year-old wore something that had already earned the celebrity seal of approval -- the same garment that model-turned-actress Rosie Huntington-Whiteley, 26, had sported a month before.

Miley Cyrus (Paul A. Hebert/Getty Images)Rosie Huntington-Whiteley (Jason LaVeris/FilmMagic)

Anne Hathaway (Getty Images/ Jason Merritt)Anne Hathaway may have cried when she lopped off her locks to play destitute mother Fantine in "Les Misérables," but we bet she's only shedding tears of joy now that her pixie cut has been named the "The Most Influential Haircut of All Time."