Dressed in a blue top and black pants, the “Voice” coach was surrounded by a group of children holding candles as cameras captured footage to be turned into the PSA launching this autumn in KFC, Pizza Hut and Taco Bell restaurants worldwide.

With the effort to benefit the UN World Food Programme (WFP), Miss Aguilera tweeted, “Just filmed new PSA for @WldHungerRelief by @yumbrands launching in Sept. Share this and grow the movement! FromHungerToHope.com”

With Christina also serving as an “Ambassador Against Hunger” for WFP, the Grammy winning singer previously appeared in World Hunger Relief restaurant posters, including a never–seen–before photo of her in Haiti, accompanied by the quote, “Together, we have the power to save lives and go from hunger to hope.”

Looking gorgeous in a trendy fedora, the star of “The Voice” and her cute son paid a visit to the lovable green ogre while posing for a few pictures in the dressing room.

Also in the house was another mother/son celebrity duo – Kourtney Kardashian and Mason.

As for Christina, she is trying to spend as much quality time with her boy as possible before auditions for season 2 of her NBC show begin this month.

The two coaches from “The Voice” got into rock star attitude as they took to their mics with an American flag acting as the backdrop while silver confetti fell from above.

Tweeting about the video teamup prior to the shoot, Miss Aguilera excitedly wrote, “Will be joining the boys again tomorrow- shooting video w/ @Maroon5. Looking forward to the fun and laughs w/ @AdamLevine”

Pleased with the outcome, Christina wrote once finished up, “Always great to see Jonas Akerlund. He created the perfect feel for the song. Expect a fun video. #moveslikejagger”

Meanwhile, Levine also took to Twitter after wrapping his “Moves Like Jagger” video, as he penned, “Just wrapped #moveslikejagger video. Its outrageous and amazing!”

Enjoy the pictures of Christina Aguilera and Adam Levine at the Maroon 5 video shoot for ‘Moves Like Jagger’.

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Just a day after Christina Aguilera, Cee Lo Green, Adam Levine, and Blake Shelton wrapped up work on the show’s debut season, NBC announced the big news for its sophomore effort.

“Our fantastic coaches were integral to the tremendous success of ‘The Voice’ this year and we are thrilled that they are all returning,” said NBC executive Paul Telegdy.

Teledgy added, “We look forward to building season two and making ‘The Voice’ an even greater experience for fans.”

The “Ain’t No Other Man” songstress joined forces with Adam Levine, Cee Lo Green, and Blake Shelton for a killer rendition of Queen’s “Under Pressure.”

And it seems that the coaches love Queen, as earlier this month they performed a medley of the classic rock band’s songs.

The eight finalists of the evening were Beverly McClellan, Vicci Martinez, Javier Jolon, Dia Frampton, Frenchie Davis, Casey Weston, Nakia, and Xenia.

The co-coach of “The Voice” – who happens to be half Ecuadorian – reached back to her roots by singing the entire tune in Spanish.

Miss Aguilera’s new song was produced for movie purposes, as it will be features in the upcoming Will Ferrell comedy “Casa de Mi Padre” – with the picture set to be released later in 2011.

Meanwhile, fans of Christina can look forward to seeing more of her when “The Voice” returns with a performance show on Tuesday and a results show the following day at 9PM on NBC.

The “Ain’t No Other Man” songstress stepped out of her car on Thursday and waved to fans as she headed inside a studio for a meeting.

Christina’s “The Voice” costar Adam Levine recently chatted with press about their dynamic on and off camera.

“I just met her a couple of days before we started shooting! I don’t know where it comes from. We just bicker like brother and sister, and part of it is fabricated by the television gods.”

“But she’s great. I respect the sh– out of her. She’s going through a tough time, and God bless her. This show is great for her. But if she busts my balls, I’ll bust hers.”

Enjoy the new song below and the pictures of Christina Aguilera at a recording studio in Burbank.

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Actually sharing dual cover duties with Beyonce, the “Voice” beauty posed for Daniele Duella & Iango Henzi while being styled up for the shoot by Giovanna Battaglia.

As for the interview, Miss Aguilera addressed rumors of an affair by ex-husband Jordan Bratman, along with her much-talked-about botched National Anthem at the Super Bowl.

On fighting between Steve Antin and Clint Culpepper on the “Burlesque” set: “There was a lot of incestuous energy in that movie. And it was very hard to be in the center of all that. A lot was riding on the film, and I bore the brunt. I was like, ‘Hey, stop fighting—this is my career.’”

On botching the National Anthem at the Super Bowl: “Everything on the field at the Super Bowl was vividly bright, and I was having a moment. I got lost in the emotion of being there and I messed up the lyrics to the song…I went to dinner after the Super Bowl with Matt and I laughed at how I’d made myself into a Trivial Pursuit question…”

On ex-husband Jordan Bratman’s rumored affairs: “At one time or another, we were both not angels. It got to a point where my life at home was reminding me of my own childhood. I will not have my son grow up in a tension-filled home…”

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The 30-year-old songstress, (looking super trendy in an animal print top, black skirt, and slingback Louboutin’s) judged the final round of a singing competition on the show – which would send the winner to a taping of her show, “The Voice.”

Meanwhile, Christina has reportedly made her way into the studio to record a duet with “American Idol” winner Adam Lambert Lambert.

If the rumors are true, the super-talented twosome’s track will be showcased on Lambert’s upcoming album.

The 30-year-old coach from The Voice paired her Valentino dress with Christian Louboutin shoes and looked gorgeous.

The event, which benefited FFAWN’s Scholarship Fund, was hosted by Mary J., Queen Latifah, and Elle’s Robbie Myers. The fund helps send young women to college with full, four-year scholarships. FFAWN stands for The Mary J. Blige and Steve Stoute Foundation for the Advancement of Women.

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The 30-year-old singer and celebrity coach on The Voice dined out at The Spotted Pig in NYC’s West Village. The couple kept holding hands all the time and looked happy smiling at each other.

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