Lady Gaga has been lying low recently. She quit Twitter and even stepped out in casual, plain clothes.

But one tweet from photographers Inez Van Lamsweerde and Vinoodh Matadin has put her back in our line of vision ... and we can't look away. In support of her highly anticipated album "ARTPOP," the star posed nude for V Magazine. Without much makeup or theatrical costumes, and wearing just a hand bra, the mother of little monsters looks nearly flawless au naturel.

A new report released Thursday by Bowling Green State University's National Center for Marriage and Family Research found that the U.S. marriage rate is 31.1, or 31 marriages per 1,000 unmarried women. That means for every 1,000 unmarried women in the U.S., 31 of those previously single women tied the knot in the last year. For comparison, in 1920, the national marriage rate was 92.3.

Meanwhile, the average age at women's first marriage is 27 years old, its highest point in over a century.

In 2011, the Pew Research Center found that 51 percent of Americans were married, compared to 72 percent in 1960. However, rates of cohabiting couples are rising -- according to private research company Demographic Intelligence, less than half a million couples were cohabiting in 1960, compared to 7.5 million in 2010.

Earlier this year, Los Angeles Times columnist Meghan Daum offered a reason for declining marriage rates: cultural "rules" now compel couples to wait to marry until they have reached upper-class status. Pew researcher D'Vera Cohn told HuffPost in 2011 that the decline could be due to more acceptable living arrangements, including unmarried cohabitation.

Kate Middleton's baby is finally here! Buckingham Palace confirms that the Duchess of Cambridge has given birth to a baby boy, the first child for her and Prince William.

Kate was admitted to St Mary's Hospital on the morning of July 22. She and Prince William arrived via car through a secret side entrance.

The birth comes after an anxious waiting period. Beginning in early July, press and fans camped outside the Lindo Wing of St Mary's Hospital waiting for the duchess to arrive on her speculative due date... only to be left waiting for days more.

The duchess' pregnancy was announced in December 2012, following months of royal baby rumors perpetuated by the tabloids. The day of the announcement, Kate was admitted to the hospital for treatment for hyperemesis gravidarum. The illness, an acute form of morning sickness, was thought to be serious enough to affect her entire pregnancy, preventing her from making many public appearances.

But over the course of her second and third trimesters, Kate was as active as ever. Between engagements at schools, museums and Buckingham Palace garden parties, Kate also made time to shop, go to Starbucks and walk her puppy in Hyde Park.

Now she'll have to bring a stroller along! Stay tuned for more updates on the royal baby, and click over to our royal pregnancy page for more goodies.

The singer sparked controversy in June when she relstimeased "We Can't Stop" -- a sexy dance anthem, rife with drug references. Though the song's producer first claimed the lyric was "dancing with Miley," not "dancing with molly" -- which is a slang term for MDMA -- Cyrus has set the record straight. And yes, the former Disney darling is singing about rolling.

"It depends who's doing what. If you're aged ten [the lyric is] Miley, if you know what I'm talking about then you know. I just wanted it to be played on the radio and they've already had to edit it so much," the 20-year-old singer told the Daily Mail revealing interview. "I don't think people have a hard time understanding that I've grown up. You can Google me and you know what I'm up to -- you know what that lyric is saying."

Cyrus also opened up about the racy video for "We Can't Stop," which she complained was heavily edited by MTV UK. When asked by the paper what she would say to those who believe her video is too provocative, she quickly responds by referencing the Trayvon Martin case:

"Then I'll give you an edit. I just think the world is so lame because you can shoot people in a movie and you can let people like [George] Zimmerman off on trial but you can't have someone going like this [she simulates oral sex gesture], that is so dumb to me," Cyrus explained. "The world is such a f--ked up place the last thing people need to worry about is my cute little video for 'We Can't Stop,' you know what I mean?"

The model and mom-of-four has posted yet another topless photo, adding to her recent collection of NSFW snapshots. The 40-year-old took to Twitter yesterday to share a nude picture of herself in nothing but her bikini bottoms while hugging a palm tree. (Yes, it looks exactly how it sounds).

But these kinds of things have been popping up all over Klum's social media accounts lately. Just this week she posted a topless photo of herself lying in the sand with a seashell smiley face on her toned tummy. And earlier this month she shared another sexy picture on Instagram, flashing her bare butt and tan lines for all to see.

Kourtney Kardashian wowed in a yellow swimsuit while relaxing poolside with her family in Miami on July 20. Joined by longtime love Scott Disick and their two kids Mason and Penelope, Kardashian lounged in the sun before taking a refreshing dip in the pool at the Setai Hotel.

The 34-year-old looks amazing after giving birth to her daughter a year ago. And breastfeeding could be a weight loss trick -- in photos taken by FameFlynet, Kardashian was seen feeding Penelope while braving the heat yesterday.

"It was harder to lose weight the second time around. I gained 45 pounds with Penelope," Kardashian told Us Weekly about her post-baby body. "This time, the focus is really on being a mom and being present, knowing my priorities."

A New York City McDonald's crew walked out Friday, saying they were forced to work without air conditioning amid record-high temperatures. One worker collapsed from the heat.

Luisa Villa, an employee who participated in the walkout on Friday, said in an interview with The Huffington Post that the air conditioner in the restaurant's kitchen has been broken at least since she began working there nine years ago. The crew member who collapsed, Esheliz Méndez, had complained about the broken air conditioner numerous times, she added. A repair was made last year after another employee collapsed, Villa said, but the cooling system broke again within a week.

"[The owners of the store] make fun of us because they think we're animals," Villa said in Spanish. "We're not animals. We're people. We don't want to die and you can certainly die from the heat, you know."

Greg Basta, Deputy Director at New York Communities for Change, tweeted a photo of the scene:

The McDonald's branch in question, located in Washington Heights, is an independently owned franchise managed by Dominga De Jesus, according to the company's website. Seventy people work there in total, Villa said.

The McDonald's branch and the company's headquarters did not immediately respond to requests for comment.

The New York City Fire Department told NBC News that it transported an unconscious person to the hospital from the McDonald's location early Friday afternoon.

Villa said she and her fellow employees walked out simply because they want the air conditioner to be fixed. Soon after the walkout took place, the owners brought in temporary workers so the restaurant could continue operating. Villa added that she hopes the owners will not retaliate against the workers and fire them because of the protests.

Paris Hilton posed on the beach in Malibu, Calif., yesterday for the French reality TV series "Les ch'tis Hollywood." Hilton donned a black monokini and covered it with a see-through, white maxi beach dress.

According to the French website Melty, the heiress also took the series' lady contestants shopping.

Hilton's former BFF, Kim Kardashian, also made a guest appearance on the French TV show some seasons ago, notes Melty.fr.

The 35-year-old and her co-hosts chatted with Hot 97 to promote their new show recently and delved into topics like twerking, Justin Bieber and sex. That is when Mowry-Housley admitted she didn't lose her virginity until she was 29 years old.

"I don't know how to explain this, but I'm religious... So I waited 'til I was 29 to lose my virginity," she said. "And then -- you may not understand this -- I did it and then I felt guilty, and then I became celibate until I got married."

But when the ladies brought a sex therapist onto the show, Mowry-Housley knew all the answers.

"Just 'cause you only had sex with one person don't mean you not a freak, and I think that that's a good thing," co-host Adrienne Bailon added. "I think people think that you could only be a freak by doing it with a bunch of people. You can be a freak and just be a freak with one person. And I think that's beautiful and dope."

Mowry-Housley married husband Adam, a Fox News correspondent, in 2011 after six years together. She gave birth to their first child, son Aden, the following year.

This isn't the first time the actress, who is a devout Christian, has opened up about what she has (and hasn't) done in the bedroom. She talked about her virginity with Young, Black and Fabulous two years ago.

"We decided, it was both of our decision, not to live together for religious reasons," she said. "I'm being very honest. We actually didn't wait before we got married to be intimate...but we did wait 3 years. [...] I wanted to do what felt right for me.

Demi Lovato is one of many celebrities mourning the untimely death of Cory Monteith, but, for the former Disney star, the actor's struggles hit close to home.

On Tuesday, it was announced Monteith died of a mixed-drug toxicity involving heroin and alcohol. The 31-year-old was found unresponsive in a Vancouver hotel room July 13, but his battle with substance abuse stretched back to his teenage years.

"All it takes is one moment of vulnerability to get slipped into your addiction," Lovato told People magazine Wednesday. "He didn't choose to die. It was the disease. It can creep up on you at any moment. It only takes one moment of relapse to potentially die. It's really scary, but I'm really hoping that from this, people are able to see this is a very, very, very dangerous disease."

The 20-year-old has dealt with her own demons. In 2010, she entered rehab for eating disorders and self-harm. She sought help for the "emotional and physical issues" she struggled with since childhood.

After leaving rehab, Lovato opened up to the press about her darker days. She eventually admitted to using drugs because of peer pressure and loneliness.

“It’s something I don’t really want to talk about,” Lovato told Fabulous Magazine last year. “What I can say is that I was depressed. I would come off stage in front of 18,000 people and suddenly be alone in a hotel room. I’d come crashing down and would try to find a way to recreate that feeling, to stay ‘up.'"

“Promoters gave me drugs and alcohol in restaurants or clubs,” she added. “They wanted me to come back so I would be seen there. They were basically kissing my ass.”