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Mercedes Benz Fashion Week kicked off in New York last week and all the stars came out in their finest outfits to check out the fashion shows. Oh, and also Justin Bieber debuted what we can only describe as a mustache at the festivities. Once you see it, you won't be able to unsee it. You have been warned.

Carrie Underwood fell on her behind onstage last night (Sept. 5) in Corpus Christi, Texas, when her sky-high stilettos caught on her long-hanging shirt and caused her to lose her balance.

You can't stop Miley Cyrus. Just as the rambling about her VMAs performance is dying down, she's teased a photo for her upcoming single 'Wrecking Ball.'

Although Nicholas Hoult and Joe Dempsie have successful careers as adult actors, the two Brits both got their start playing teens on the U.K. drama 'Skins.' These days, however, Nicholas has transitioned to leading roles on the big screen, and Joe is featured on the hit show 'Game of Thrones.' Which of these former teen stars is more swoon-worthy?

Dakota Fanning is growing up! The 19-year-old actress, who's always been pretty private about her love life (a smart move for such a young lady!), was snapped holding hands and cuddling up to her boyfriend. And, uh, he's 32. So who is he?

With an alumni list that includes Kelly Clarkson, Carrie Underwood and Jordin Sparks, there's no doubt that 'American Idol' knows how to make a star. Two of the reality show's most successful singers are also known for being very easy on the eyes. Who do you think is more swoon-worthy: Adam Lambert or Phillip Phillips?

Earlier this week, news broke that actor Charlie Hunnam would be stepping up to play the risque role of Christian Grey in the movie adaption of 'Fifty Shades of Grey.' While the book has garnered buzz in its own right, let's not forget someone has already played the role -- sort of! 'Fifty Shades' originated as 'Twilight' fan fiction, and as all Twihards know, Robert Pattinson starred in the movie

Four years ago, Hayden Panettiere got a tattoo on her ribcage reading “Vivere senza rimipianti,” which was supposed to be Italian for “live without regrets” -- but in an unfortunate irony, “rimipianti” was misspelled. It should be “rimpianti.” Now it looks like she's doing something about it.

Ashley Greene doesn't get as much attention as her 'Twilight' co-star Kristen Stewart, but Greene is talented, adorable and stylish. While her red carpet gowns are not as daring as her fellow Twilighter, they are stunning.

Jamie-Lynn Sigler, who had a baby boy less than a week ago, isn't wasting any time showing him off to the world. Well, part of him, at least.

In a rivalry almost as vicious as their fictional face-off in 'The Departed,' Leonardo DiCaprio and Matt Damon are once again going head to head. The actors transcended heartthrob status to become two of Hollywood's most lauded leading men. Who do you think is more swoon-worthy?

Two of the hottest shows on TV are known for for their smoking-hot leading men. Jon Hamm of 'Mad Men' and Alexander Skarsgard of 'True Blood' both have good looks and acting chops! Who do you think is more swoon-worthy?

Not one to be outdone by ex-boyfriend Robert Pattinson's racy series of Dior Homme men's fragrance ads, Kristen Stewart has gone topless for a new advertisement for the perfume Florabotanica by Balenciaga. This is her second ad campaign for the company.

The oldest Jonas Brother, Kevin Jonas, and his wife announced they were expecting a baby back in July -- and now, thanks to the wonders of technology, we know it's going to be a little girl. Congrats, guys!

When it comes to leading men the Internet can't enough of, Ryan Gosling and Joseph Gordon-Levitt top the list. Both gents are known for taking on a variety of roles and even have production creds to their names. Who do you think is more swoon-worthy?

Actress Ashley Greene was spotted looking makeup-free while leaving the gym on Aug. 27 with a pal. And boy, are we jealous.

Superstars like Justin Timberlake and Justin Bieber always make us weak in the knees. After all, they can sing, dance and have charisma for days! Both of these entertainers are extremely talented, but which one is more swoon-worthy?

Celebrities can afford to travel to far-flung locations around the world for vacation, be it sunlit beaches or exotic safaris -- and with summer coming to a close we wanted to give you the chance to live vicariously through them. In photo form. If you close your eyes you can almost feel the salt-filled air on your skin. Although, if you did that, you wouldn't be able to look at the photos. You can

On June 30, Jessica Simpson gave birth to a baby boy she and fiance Eric Johnson named Ace Knute. And now she's ready to show off the newest addition to the family.

The judges of 'The Voice' are known for their vocal talents, but they are also easy on the eyes. Maroon 5's Adam Levine is known for keeping witty banter with Christina Aguilera, while Usher definitely brings charm to the reality show. Which judge is more swoon-worthy?