Mark Ashman/Disney

Mariah Carey performed at the Disney Parks Christmas Day Parade in Orlando over the weekend, and we love how festive and jolly she looks here!

Mariah belted out hits like "Oh Santa" and "All I Want for Christmas is You," and she even danced a bit onstage! "She was really energetic," a backstage source tells People. "She had definite ideas about what she wanted onstage, and she was working really hard." Hopefully she'll take it easy though -- that's what the holidays are all about, especially when you've got a baby on board!

Josh Duhamel also attended the Trevor Live event in Hollywood last night, and the hunky actor opened up up his recent air travel drama.

After refusing to turn off his BlackBerry, Duhamel was escorted off a NYC flight last week, but it seems like he's learned his lesson. "I learned that it's best to always turn them off," he told Access Hollywood on Sunday, noting that it was "not my favorite moment."

The actor's rep said he was "sorry" for the incident, and Duhamel added, "I'm good, lesson learned." Who else was at the event? Click the gallery below to see!

The entire video for Hold My Hand featuring Michael Jackson and Akon hasn't been released, but this preview definitely has us excited to hear more. The track, recorded by the two singers back in 2007, definitely sounds like an inspirational and uplifting song.

According to the Jackson Estate, Michael had written a note saying that he wanted this song to be the first single on his next project.

Although some of the tune leaked online back in 2008, Akon just recently completed the song and shot the new footage for the upcoming video.

Sounds like a hit!

Chelsea Handler ripped Angelina Jolie a new one over the weekend at a stand-up comedy show in Newark, New Jersey, and we're not sure what Jennifer Aniston would have to say about this, but dayum!

Handler told the audience, "She's a homewrecker, she is. She can rescue as many babies from as many countries as she wants to. I don't f*cking believe you. She gives interviews, 'I don't have a lot of female friends.' Because you're a f*cking c*** ... you're a f*cking b*tch!"

Handler and Aniston recently vacationed in Cabo together for Thanksgiving, and we doubt Jen would have said anything like this about the woman who snatched Brad Pitt away from her, but Chelsea certainly doesn't have a problem doing it!

Emma Stone attended the "Trevor Live" event in Hollywood last night (this all went to benefit the Trevor Project, the folks behind the "It Gets Better" PSA) and the Easy A starlet debuted her shocking new hairdo. Hmm, wasn't this around the time in Lindsay Lohan's career that she went blonde and skinny? Let the comparisons begin!

What a good grandfather!

Fausto Aguilera got to spend time with Xtina and Jordan Bratman's little bundle of joy on Sunday - he took grandson Max to Barneys in Beverly Hills and let little M play with the elevator buttons! (Take a peek inside our gallery for more pix of the duo...)

Thankfully Christina Aguilera's boy is a bit too young to understand the complexities of divorce. And good to know he has a supportive family by his side no matter what!

Former High School Musical starlet Vanessa Hudgens - seen above at LAX yesterday in a mismatched outfit - was reportedly lined up to host the American version of The X Factor with Zac Efron. But according to Hudgens' rep, the actress will not be hosting.

Hey, at least she's still Efron's girlfriend! That's something to put on her resume, right?

It almost looks like she's wearing a cloak! Posh Spice left La La Land once again for Europe on Sunday, and unfortunately hid her face behind a high-collared Giambattista Valli coat. Victoria Beckham reminds me more and more of Twiggy every day!

Meanwhile, various reports claim that Posh and Becks will be invited to the upcoming Royal wedding between Prince William and Kate Middleton as the Beckhams have known William and Harry since the brothers were teenagers. Plus, Prince William and David Beckham will both be lobbying next week for the 2018 World Cup to be held in England.

David and Vic are basically royalty at this point anyway!