Christina Aguilera paid tribute to her idol, Etta James, as the blues legend was laid to rest at a Los Angeles-area church today. Dressed in all black, the pop star belted out James’ classic “At Last,” sharing some heartfelt words with the congregation.

“I have to first of all say what an amazing honor it is for me to have been welcomed here today, invited here, to pay tribute to the great Ms. Etta James,” said an emotional Christina. “I went around the world throughout all my career saying that Ms. Etta James was my favorite singer in the whole wide world.”

Watch her stirring rendition below.

Maroon 5 showed off their fancy footwork while performing “Moves Like Jagger” at the AMAs. Following an introduction from Bruno Mars, Adam Levine and the rest of the band dueted with a curvy Christina Aguilera on the chart-topping duet. Levine broke from the group to lend his voice to Gym Class Heroes’ single “Stereo Hearts” as their sounds emanated from the giant boombox onstage.

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Some of Michael Jackson’s most famous fans and family members gathered to celebrate the iconic career of the pop legend at a tribute show in Cardiff, Wales, on Saturday (Oct. 8). “Michael Forever: The Tribute Concert,” which was sanctioned by Michael’s mother Katherine Jackson, featured superstar sets from Beyoncé, Christina Aguilera, Cee Lo Green, Ne-Yo, Leona Lewis, and more, with hosts Jamie Foxx and Fearne Cotton. The Jackson family, including Michael’s three kids, took the glove-shaped stage before tens of thousands of devoted fans at Millenium Stadium. Among the highlights…

• Ne-Yo kicked off the four-hour extravaganza by channeling the pop icon during “Billie Jean” and “The Lady In My Life.” He thrilled with MJ’s signature moves in his iconic glittery jacket and glove.
• Michael’s children Prince, Paris, and Blanket introduced Beyoncé, who appeared via satellite. Rocking an Afro, B performed one of her favorite Jackson records “I Wanna Be Where You Are.”
• Emotions ran high as Christina Aguilera belted out MJ’s favorite ballad “Smile,” kicking it up a notch with “Dirty Diana.”
• Britain’s “X Factor” champ Alexandra Burke delivered the Jackson 5’s “Who’s Lovin’ You” and “Scream,” Michael’s collaboration with his sister Janet.
• Cee Lo Green toned down the flash, performing “I Can’t Help It” from Off the Wall, wearing a simple white T-shirt.
• Michael’s nephews 3T reunited for the Jackson 5’s “Heartbreak Hotel” and “Why,” a duet with their late uncle.
• Leona Lewis was joined by ballerinas for “Stranger in Moscow.” “What an electric experience!” she wrote. “Honoured to be a part of the show.”
• La Toya Jackson hit the stage for the first time in 20 years, performing “In the Closet” and “Jam” with Heavy D.
• Tears streamed down fans’ faces as Gladys Knight and Smokey Robinson dueted on a beautiful cover of “I Just Can’t Stop Loving You.”
• Ne-Yo, JLS, and members of the Jackson family came together on stage for the all-star finale of “Don’t Stop ‘Til You Get Enough.”

Previously announced performers the Black Eyed Peas and Jennifer Hudson pulled out of the show. “To my uk fans that were coming to the mj show in wales. I will no longer be attentding due to major production issues,” tweeted Hudson. “I would have thought they would have informed you all by now, so since they did not, I am. Thank u for your support.”

Brothers Jermaine and Randy boycotted the event because of its timing with the Jackson manslaughter trial, while Janet explained that it would be too painful to perform amidst the court proceedings.

Christina Aguilera, Leona Lewis, and Cee Lo Green will honor Michael Jackson by taking part in a tribute concert in October.

The singing superstars join Smokey Robinson, JLS, Alien Ant Farm, and Craig David as performers for “Michael Forever: The Tribute Concert,” promoters told CNN. The show, sanctioned by Michael’s mother Katherine Jackson, will take place on October 8 in Cardiff, Wales, with members of the Jackson family taking the stage including the King of Pop’s brothers and 3T, which consists of Tito Jackson’s three sons.

Seventy-five thousand people are expected to attend the four-hour-plus concert at Wales Millennium Stadium. The singers have been asked to perform one or two of their favorite MJ songs.

Fans can start registering their interest for tickets online beginning Thursday. A lottery will be held to determine who will be able to purchase tickets.

More performers will be announced in the coming days. TMZ reported that Kanye West, Jay-Z, and Chris Brown all received invitations from Katherine Jackson, but their participation has not been confirmed.

Adam Levine pays homage to Mick Jagger with a fitting tribute. The shirtless Maroon 5 frontman struts his stuff as the iconic Rolling Stones rocker in the video for “Moves Like Jagger,” a single off the deluxe edition of the band’s latest album Hands All Over. The Jonas Åckerlund-directed clip (Lady Gaga, Beyoncé) co-stars Levine’s fellow “Voice” judge Christina Aguilera and a slew of dancing Jagger wannabes, plus vintage footage of the man himself.

“We were lucky enough to get Mick’s endorsement [for the video], as far as him giving us access to a bunch of different footage that’s so cool,” Levine told MTV News. “Not many people have seen [it], especially a newer generation of people that don’t know so much about how incredible he was.”

Now here’s a swagger that will never go out of style.

Adam Levine and Christina Aguilera joined forces for the television premiere of their new collaboration “Moves Like Jagger” on NBC’s “The Voice.” The Maroon 5 frontman rocked with his band before his fellow “Voice” coach strutted to the stage to duet with him.

Adam Levine puts his voice together with fellow “Voice” coach Christina Aguilera on “Moves Like Jagger,” the new single from Maroon 5. The feel-good track, recorded last month in Los Angeles, boasts an upbeat pop hook that will be ingrained in your brain within minutes. Adam’s swagger combined with Christina’s powerful pipes make for a summer smash. Catch them performing the song tonight on “The Voice.”

Christina Aguilera teams with her fellow “Voice” judge Cee Lo Green for a “Nasty” collaboration. According to the “F**k You” singer, the song was recorded a few years ago and was intended for the pop star’s Burlesque soundtrack, but did not make the cut. He says there is now talk to officially release it. Get a first listen below.

It was ladies’ night at FFAWN’s 2nd Annual Mary J. Blige Honors Concert in New York City. The Queen of Hip-Hop Soul presided over the evening’s festivities at Hammerstein Ballroom. Her fellow divas including Jennifer Hudson, Christina Aguilera, LeToya Luckett, and Jill Scott were on hand to perform and help award scholarships to tomorrow’s young female leaders. MJB started the organization to ensure that educational opportunities are made available to women so that they can get the training needed to be successful.

Check out the glamorous gals uniting to support the worthy cause.

The judges of NBC’s “The Voice” joined forces to pay homage to one of their own. Christina Aguilera, Adam Levine, and Blake Shelton hit the stage with Cee Lo Green to perform an all-star cover of his Gnarls Barkley smash “Crazy.” Xtina held court by leading the group with the ATLien, while the Maroon 5 frontman held it down on the drums and Shelton rocked out on the guitar.

Check out the quartet going “Crazy” before the show debuts on Tuesday at 9 p.m. EST on NBC.