Denim

Whether it's luxury labels like Rock & Republic or bargain buys like American Eagle, it's obvious that Selena Gomez, who turns 19-years-old today, has an affinity for denim.

The Disney star and girlfriend of tween heartthrob Justin Bieber can be spotted in any style -- from faded to dark wash, cutoffs to skinnies and everything in between. What's more impressive than Gomez's extensive collection of denim is her knack for styling the looks: if she's hitting the red carpet, peep-toe pumps are a must; if she's on a date with Bieber, she'll add a boho top and comfy flats.

So click through the gallery below to witness Gomez's love for jeans, and make sure to lets us know in the comments section below which denim style you can't live without.

Meanwhile, check out the 10 denim hybrids we hope Gomez will never try!

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Yesterday, J.Brand officially re-launched their website and entered into the competition between big fashion brands for who's got the best and most tech-savvy site of all.

Shopping for the perfect new jeans with just the right fit and wash online can be a little tough, but J.Brand's made everything a lot easier, and a lot more fun. In addition to their already established ecommerce page, J.Brand's now offering up three new ways for the customer to interact.

The first is called "Style Notes," a section of the new site where a pair of the season's most popular denim is spotlighted and styled in different ways by guest editors and stylists like Brad Goreski. Users of the site will be able to buy these expertly styled looks and share them via social media.

We're particularly excited about the section called, "In The Pocket." Here, visitors will be able to check out behind the scenes footage from insiders at the brand, as well as learn more about the overall culture of the company. There will also be news content and contributing blogger posts as well.

And in case you aren't Brad Goreski or a popular style blogger, there's still room for you to contribute to J.Brand's new content. "J World" is a section of the site dedicated to user-created content where fans and customers can upload photos of themselves wearing J.Brand styles and share it, via collage, to the whole world (think Burberry's "Art of The Trench" that came out last year).

So like we said before, it's an exciting time for J.Brand, but they're one of many fashion forward-thinking labels that have finally decided to get into digital marketing. Within the last few months, designers like Rag & Bone, DVF, Tory Burch and Dolce and Gabbana have launched new versions of their own sites and blogs in hopes of being the biggest and baddest social media masters in the game.

It took the fashion crowd quite a while to stop being afraid of the Internet and start using it to their advantage, especially those in the realm of Prada and Louis Vuitton, but we've got to say that it's an exciting time to be clicking through these stylish sites.

Below, check out Business of Fashion's recent interview with Dolce & Gabbana and learn more about how they rebooted the brand with the re-launch of their own site.

WHO: Claudia Schiffer

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Back in 2005, Jessica Simpson pranced around the set of The Dukes of Hazzard wearing tiny cut off denim shorts and really, not much else. From there on after, the down-home Texas girl was rarely seen in anything but denim daisy dukes - whether she's on stage two-stepping with her cowboy boots or walking her dog in YSL tributes, the ripped jean short is definitely Jess' signature style staple.

This season, the spring runways showed plenty of cute cut off denim a la Jess Simpson - from Balmain's rock-n-roll inspired jean to Isabel Marant's sportier short ensemble.

As a tribute to the go-to denim cut off, and the multitude of young starlets who are fans, we've gathered some of the best pics featuring celebrity denim short attire. From Rihanna's gnarled pair to Rachel Bilson's cleaner cut, the ripped jean short seems to be Hollywood's go-to summer look.

Click through our slideshow to see who's made the denim short cut this season.

WHO: Hailee Steinfeld

WHAT: Philosophy di Alberta Ferretti Spring 2011 dress, denim jacket and Jimmy Choo motorcycle boots

WHERE: The Los Angeles Premiere of "Cars 2" in Hollywood on June 18.