Singer Mariah Carey has revealed that not only does she sleep a whopping 15 hours a night (IS there 15 hours in the night?), she also uses “20 humidifiers around [her] bed.” Yikes. I wonder how much water that is a night? [Editor's note: Not to mention the electricity!]

Marama Davidson, daughter of actor and New Zealand Green Party Member Rawiri Paratene (Whale Rider, Xena: Warrior Princess), painted her pregnant belly with the words “Vote for Me” in green in support of her father’s Party while doing outreach at Auckland University.

Kerri Russell was recently spotted with an organic Ergobaby Carrier when out and about with son, River. Want one for your own green tot? Click here.

The New York Public Library’s 2008 Library Lions benefit was the place to be for many celebs on Monday. Barbara Walters, Charlie Rose, and Ivanka Trump, among others, all made an appearance. The benefit honored Edward Albee, Ashley Bryan, Nora Ephron, and Salman Rushdie; and one of my all-time favorite writers, Nobel Laureate and Library Trustee, Toni Morrison, was the Master of Ceremonies.

Brittany Spears is auctioning off her naked self–her naked self-portrait, that is. The painting, which the singer has also autographed, is being sold on eBay to raise funds for L.A.’s the Promises Foundation, which provides women and children with low-income with behavioral health services. Wait. Behavioral health services? Now there’s the ironic moment of the day. To bid, click here.

Though the lawsuit hasn’t been settled (or dismissed) yet, Kate Hudson is still promoting her new hair-care line, David Babaii for WildAid. Not only is the actress actually using herself to test the products (Go Kate!), she’s also filming ads out in the bush with WildAid workers. “There was a black rhino right in front of our hut. It is one of the top on the endangered species list. It was so sad. It was all alone,” she said.

While the Atkins meat frenzy hasn’t completely left the planet yet, there are plenty of celebs who use veggie means when they’re dieting. Joan Lunden digs fresh fruit, Kelly Preston chows on oatmeal and bagels, Claudia Schiffer munches on salad and steamed vegetables, and Heidi Klum uses a salad with vinegar as an appetizer going out to restrain her appetite.

Molly Sims and Jennifer Jason Leigh are fans of Vert, L.A.’s first eco beauty boutique. Vert’s products are all chemical-free, mostly organic, and the store even holds makeup seminars and workshops to help customers lead more eco-friendly lifestyles.