Pamela Anderson and Alessandra Ambrosio may have a bit of a generational gap (Alessandra was just a kid when Pammy was wowing audiences with her beach bod in Baywatch), but they certainly know how to heat things up!

Both of the ladies shared sexy videos with millions of fans on Valentine's Day, though with somewhat different messages. Pamela stripped down to nothing for a new PETA PSA video called "La Chienne" (French for "The Dog") to ask pet owners to keep their pooches inside this winter, while Alessandra rolled around in her underwear in a video shoot for Love Magazine titled "Be Mine." Seems like the goal of her piece was to show us how great her body looks after not one but two kids...





Which vid do you like better?

Love is in the air ... and everywhere!

On Valentine's Day Ellen DeGeneres and wife Portia de Rossi enjoyed an afternoon out in Beverly Hills, and the ladies shared a sweet kiss and were giggling like a couple of teenagers. We love that they've been together for a decade and they still have that spark!

We're sure E & P went big with dinner and flowers later in the evening, and though the talk show host didn't post any Twitpics documenting their lovey dovey adventures, she did tweet about the news that yet another state is one step closer to legalizing gay marriage.

On Thursday evening a federal judge declared that Virginia’s ban on same-sex marriage was unconstitutional, and upon hearing the news, Ellen wrote, "Virginia is for lovers, and this Valentine's Day, the people of Virginia can love, and soon marry, anyone they want. Happy Valentine's Day!"

Angelina Jolie and her son Maddox flew from Los Angeles to London on Friday night ... guess she didn't end up having a romantic Valentine's Day with fiance Brad Pitt!

Angelina recently wrapped filming on Unbroken in Australia, and Brad (and the couple's six kids) were pretty much there the entire time, so it's not like Brangelina have been apart over the last few months. In fact, the duo enjoyed several days of alone time at an exclusive resort in Airlie Beach before they jetted back to the states earlier this month ... looks like everything is just fine between them!

But when will they make it down the aisle?

Ellen Page came out as gay on Friday at the Time to THRIVE conference in Las Vegas, and she received a standing ovation right in the middle of her 8-minute speech!

"I am here today because I am gay," she said. "And because maybe I can make a difference. To help others have an easier and more hopeful time. Regardless, for me, I feel a personal obligation and a social responsibility. I also do it selfishly because I am tired of hiding and I am tired of lying by omission. I suffered for years because I was scared to be out. My spirit suffered, my mental health suffered and my relationships suffered. And I'm standing here today, with all of you, on the other side of all that pain."

The 26-year-old actress added, "I am young, yes, but what I have learned is that love, the beauty of it, the joy of it and yes, even the pain of it, is the most incredible gift to give and to receive as a human being. And we deserve to experience love fully, equally, without shame and without compromise."

Click the video above to watch the rest of her speech!

A happy Valentine's Day indeed!

Christina Aguilera and Matt Rutler confirmed their engagement on Twitter on Friday, and the 33-year-old singer added a shot of her beautiful diamond ring and wrote, "He asked and I said……" Of course she said yes ... that rock is stunning! "They're very much in love and are really excited to take this next step!" a source close to the pair tells People.

Aguilera and Rutler met on the set of her 2010 film Burlesque, and prior to that she was married to music producer Jordan Bratman from November 2005 until October 2010. Interestingly enough, Aguilera and Bratman finalized their divorce on Valentine's Day in 2011.

Check out her ring! And where are they? Looks like Hawaii...

Awww, how sweet! And Nori's precious little face! We can't even...

On Thursday night Kim Kardashian and her adorable daughter North West jetted out of Los Angeles International Airport, and the ladies were on a redeye flight to the east coast to catch up with Kanye West. "Nothing better than being with my love on Valentine's day!" Kim tweeted today. "Happy Vday dolls!"

Kim cradled Nori as they went through security, and it looks like the 9-month-old is already pretty accustomed to the chaos at the airport. Of course, we're sure Kim and her little girl had their own row in first class, so it can't be that hard to get used to...

Mr. Leather Jogging Pants had a show in Pennsylvania last night, and tonight he's set to perform at the Baltimore Arena in Maryland ... wonder what he has planned for his lady love?

Simon Cowell and Lauren Silverman welcomed a son on Friday, his rep has confirmed.

Cowell flew from London to New York City after learning that his girlfriend was in labor (he looked super excited when our X17 photographers snapped his picture!), and at 5:45pm EST she gave birth to a baby boy at Lenox Hill Hospital.

Cowell's rep added that their bundle of joy weighed in at 6 pounds, 7 ounces and the duo have reportedly named their son Eric, after Cowell's father. Back in July the news broke that Simon and Lauren were expecting their first child together, despite the fact that she was still married at the time. Silverman and her ex-husband Andrew finalized their divorced in August, and they have a 7-year-old son, Adam.

Glad this all ended up working out ... congrats to Simon and his baby mama!

We're not sure if she's going ombre or darkening her locks all the way, but it does appear as though Ashley Tisdale is taking a break from her usual blonde shade and exploring her darker side. Or maybe it's just the lighting? Either way, we love it!

This is the third time over the last week that we've spotted the former High School Musical hottie at the Andy Lecompte hair salon, and she showed off her glossy tresses as she exited the building and headed to her car.

Earlier this morning Ash Instagrammed the pic below and wrote, "Someone must REALLY want me to be their valentine ;) #myman #mylove #myvalentine." Fiance Christopher French certainly is well trained: