Presenting Mr. and Mrs. Reynolds!

Newlywed Blake Lively brought her husband Ryan Reynolds to Sisterhood of the Traveling Pants co-star Amber Tamblyn's wedding to Arrested Development actor David Cross, marking their big debut as a married couple!

The A-list pair, along with guests Amy Poehler, Jason Ritter, and America Ferrera among others, were in attendance as the bride, wearing a canary yellow dress, arrived via canoe to the nuptials.

The Gossip Girl star and her Safe House actor beau tied the knot in an intimate South Carolina ceremony Sept. 9, but we've yet to see them step out as husband and wife until now.

What an adorable duo!

Vanessa Lachey left newborn son Camden John at home for a night out with her ladies.

The stylish brunette, who enjoyed dinner with hubby Nick at Mastros Steakhouse in Beverly Hills, left the restaurant joking with her gal pals. Such a bummer Nick had to leave early. But Mrs. Lachey is lookin' fabulous!

Camden was born on September 12, and his mama is already rocking her sexy heels. You go, girl!

Demi Lovato took a break from her big job on The X Factor to stop by Jimmy Kimmel Live.

The 20-year-old platinum blonde talked about getting a call from Simon Cowell to join the show ... and of course, working alongside fellow judge Britney Spears.

Following the taping, the "Skyscraper" songstress headed straight to her outpatient therapy in Studio City. The former Disney darling has been seeking treatment for an eating disorder and cutting since early this year.

Great to see she's still on track!

Guy Ritchie's giving marriage another go as he became engaged to longtime girlfriend Jacqui Ainsley.

The 30-year-old English model, who's pregnant with the couple's second child, sported her new diamond ring during a dinner date Sunday at Madeo in Los Angeles.

The Sherlock Holmes director and Ainsley have been dating since April 2010, two years after his split from Madonna after eight years of marriage. They initially confirmed the news of their second child when Ainsley showed off her baby bump during the premiere of The Dark Knight Rises in London in July. Their first son, Rafael, was born in September 2011.

In the words of Rihanna, where have you been?

Heather Graham came out of hiding on Monday as her and a friend decided to do lunch in Hollywood and she still has that gorgeous smile!

The 42-year-old actress has been relatively under the radar since her appearing the hit comedy The Hangover, but that might soon change as she's set to reprise her role as Jade in The Hangover Part III. Nevertheless, it's great to see her in good spirits!

Kim Kardashian and Kanye West were spotted canoodling in Miami on Monday, and even the wet weather couldn't dampen their spirits! Hmmm, maybe Kanye isn't super thrilled about holding Kim's umbrella, but she certainly seems to appreciate it!

Kim tweeted, "Miami fun day with @kanyewest ❤ " and she also posted a picture of some fabulous new accessories, writing, "The Louis Vuitton Don strikes again! #lovingmygoodiesfromParis."

I guess those rumors of Kimye cooling things down are false -- we highly doubt he would have gifted her with a whole bunch of LV goodies if they were about to split. It seems to us like they can't keep their hands off of each other!

R. Pattz sure loves his hats! And now that the cooler weather is finally here, we'll be seeing more of the scruffy Twilight hunk in beanies and his signature flannel shirts ... yum yum yum!

A solo Rob Pattinson was spotted leaving his New York City hotel on Monday afternoon, and we're hearing that the actor is headed to the Hamptons Film Festival, which kicked off last week and closes tonight.

But is it just us, or is he a bit bummed to be without ladylove Kristen Stewart? She's currently in Los Angeles (last night she went to the Florence and the Machine concert at the Hollywood Bowl), so maybe he's also worried about what she's up to while he's away? After all, she doesn't have the best record when it comes to fidelity...

Does she ever leave the house not looking completely perfect?! We've never seen it!

Gwen Stefani took care of errands today in LA, and the No Doubt front woman opted for a monochromatic grey ensemble, which she paired with a Chanel purse and her signature red lips. The singer even matched her outfit to her ride!

Is her choice of attire reflecting her current mood?

Rumors are swirling that the blonde beauty and her husband Gavin Rossdale might be calling it quits after ten years of marriage and two beautiful boys. Say it isn't so! According to reports, the pair has been attending frequent couples therapy sessions in an effort to save their marriage, but it remains to be seen whether they will stick it out for the long haul.

We're pulling for you two!