Even though her birthday was yesterday, today's Ellen DeGeneres Show featured one last celebration: a surprise call-in song from Lady Gaga! After the serenade, Gaga and DeGeneres discussed the singer's new album, upcoming Grammy performance, and frustration with NYC weather.

The Thierry Mugler men's show—featuring Lady Gaga's new single and co-designed by her stylist Nicola Formichetti—opened Paris Fashion Week today. All the models wore plastic bags and one even looked like a zombie. Did we expect anything less?

Lady Gaga will serve as musical director and debut a new single at the Paris fashion show for Thierry Mugler. An odd choice, but Lady G is no fool—she sees the '90s revival just around the corner.

According to the number crunchers at Forbes, one-woman Vaudeville revue Lady Gaga will earn about $100 million in 2011 thanks to concerts, endorsements, and profits from her new album. But did they account for her considerable wardrobe budget?

A disfiguring dance floor accident forced David Arquette into rehab. Eva Longoria rebounds with Penelope Cruz's brother. T.I. gets "frisky" in jail. James Franco: "Maybe I'm just gay." Thursday gossip hits rock bottom.

2010 was a great year for Lady Gaga, and a great year for magazines that put her on the cover, with L.G. issues selling higher than usual. But which celebs can't move a mag to save their lives?

As if we needed another reason to be Michael Musto's friend, the Village Voice gossip columnist dressed as Lady Gaga, Justin Bieber, Snooki, and other favorites for the paper's year in review issue. He's even better than the real thing.

It was the year Christina Aguilera attacked Lady Gaga and Whoopi Goldberg stormed off The View. Conan O'Brien defied his boss and world leaders threatened to kill a psychic octopus. A guide to the bloodiest feuds of 2010.

Ostensibly pop whatchamacallit Lady Gaga sings and dances, but what most people know her for is wearing outfits. Lots and lots of outfits. Here are some of her most memorable from the past year.

Yoko Ono, in an interview with the Daily Mail, said for the millionth time that no, she didn't break up the Beatles. She also said John Lennon would "love" Facebook, Twitter and Lady Gaga. Oh, Yoko.

Mayer whispers dirty nothings into a strange female's ear. Jennifer Aniston has a 20-foot no-touch zone. Taylor Momsen is a Parisian style icon. Lindsay Lohan sips Shirley Temples. Thursday gossip is sexual napalm.

[Lady Gaga wasn't in the holiday spirit last night while attending the Foundation to Fight Allergies to Pants benefit in Paris. Image via INF]

Conservative production company Citizens United has released this post-"Don't Ask Don't Tell" ad, warning effete liberals (and Lady Gaga) that they'll all get drafted after the current Marines quit in protest. Exactly! This was Joe Lieberman's plan all along.

Much of Europe is out of commission thanks to a crazy snowstorm blanketing the continent. The situation is so incredibly bad that a Lady Gaga concert in Paris was cancelled last night, making this a Snowpocalypse for the ages.

Everyone: Demi Lovato doesn't have a sex tape! Lady Gaga is excited about DADT being gone. Ryan Reynolds and Scarlett Johansson have dinner. How did Taylor and Jake meet!? Some Gossip Girl Gossip. Sunday gossip roundup!

[Just when we retire the search for Lady Gaga's penis, the pop star goes on her own genital-hunting expedition with a friend on Twitter. A slightly NSFW image appears below.]

[A rather bland Lady Gaga wax figure was unveiled today at Madame Tussauds in Manhattan. Sadly it doesn't have a new outfit on every time you see it. Image via AP]

Britney Spears (or her imposter) might be a big stoner. Halle Berry's boyfriend gets in trouble with the law. Charlie Sheen tracks down his hooker-snatched watch. Saturday Gossip Roundup is backing over paparazzis like it's Grand Theft Auto IV.

Two Hawaiian teachers have taken a new approach to teaching their students by reworking lyrics to popular songs by artists like Lady Gaga, Jennifer Lopez, Gwen Stefani and more into some seriously cool visual history lessons ever. Some favorites, inside.

Lady Gaga and Anderson Cooper are drinking buddies. James Franco continues to be the best at everything. Taylor Swift and Jake Gyllenhaal continue their world coffee shop tour. Sunday Gossip Roundup is a perfectly-made fried egg.