Bringing an end to what was quite the entertaining evening of television, Lady Gaga teamed up with Sugarland to close the 2012 Grammy Nominations Concert in Los Angeles on Wednesday night (November 30).

The “You and I” songstress took the Nokia Theatre L.A. LIVE stage for the second time, this time joining Jennifer Nettles and Kristian Bush for a rendition of “You and I”.

Tweeting about this Grammy gig the previous day, a clearly excited Gaga wrote, “I am so excited to OPEN and CLOSE the Grammy Nomination concert 2moro night! What a blast rehearsing with Jennifer and Kristian. Sugarland!”

Also taking the stage for performances during the Grammy Nominations Concert were Rihanna, Jason Aldean, The Band Perry and Usher.

The night’s event was hosted by LL Cool J with the event preceding the actual Grammy Awards which will air live from Staples Center on February 12, 2012 on CBS.

Bringing a brand new treat to his millions of fans around the globe, Justin Bieber has released his music video collaboration for “All I Want For Christmas Is You” featuring Mariah Carey.

The new offering made its grand debut during Wednesday night’s (November 30) lighting of the Rockefeller Center Christmas tree, which was pre-taped the previous week.

Right before unveiling his video, Justin stood onstage in the NYC locale while telling the gathered crowd, “God bless and Merry Christmas.”

As for Bieber and Carey’s collaborative effort, the four minute long effort features Mariah clad in a sexy Santa outfit while dancing in a department store as Justin roams the aisles and the streets during a holiday shopping spree.

Bringing a brand new treat to his millions of fans around the globe, Justin Bieber has released his music video collaboration for “All I Want For Christmas Is You” featuring Mariah Carey.

The new offering made its grand debut during Wednesday night’s (November 30) lighting of the Rockefeller Center Christmas tree, which was pre-taped the previous week.

Right before unveiling his video, Justin stood onstage in the NYC locale while telling the gathered crowd, “God bless and Merry Christmas.”

As for Bieber and Carey’s collaborative effort, the four minute long effort features Mariah clad in a sexy Santa outfit while dancing in a department store as Justin roams the aisles and the streets during a holiday shopping spree.

Tending to her all-important presenter duties, Katy Perry was on-hand for the 2012 Grammy Nominations Concert in Los Angeles, CA on Wednesday night (November 30).

The “One That Got Away” singer looked as gorgeous as she took the Nokia Theatre L.A. LIVE stage for the unveiling of this year’s esteemed Grammy Album of the Year contenders.

Making for quite the showcase, stars like Lady Gaga, Ludacris, Rihanna, Sugarland and Usher were among the acts performing during the show.

As for the Grammy ceremony, the awards will take place at Staples Center on February 12, 2012.

Sure to amp up any music lover for the annual Grammy Awards in February, Lady Gaga was on-hand for the Grammy Nominations Concert in Los Angeles on Wednesday night (November 30).

The “You and I” songstress took the stage at the Nokia Theatre L.A. LIVE venue as she belted out “Marry The Night” to open up the evening’s festivities.

Tweeting about this Grammy gig the previous day, Gaga wrote, “I am so excited to OPEN and CLOSE the Grammy Nomination concert 2moro night! What a blast rehearsing with Jennifer and Kristian. Sugarland!”

Also taking the stage for performances during the Grammy Nominations Concert were The Band Perry, Jason Aldean with Ludacris and Usher while Katy Perry and Nicki Minaj helped present this year’s nominees.

The night’s event was hosted by LL Cool J with the event preceding the actual Grammy Awards which will air live from Staples Center on February 12, 2012 on CBS.

Having revealed the esteemed artists in the running for the top prizes in music, the 2012 Grammy Nominations Concert took place in Los Angeles, California on Wednesday night (November 30).

Held at the Nokia Theatre L.A. LIVE, the LL Cool J hosted ceremony saw British singer Adele claim the most bids for Grammy glory with a pack-leading five nominations in categories including Song of the Year, Record of the Year and the grand prize of Album of the Year for her heralded disc “21″.

His charm and charisma never go unnoticed, and Usher was among the stars at the 2012 Grammy Nominations Concert in Los Angeles, CA on Wednesday night (November 30).

The “Lay You Down” stud took the stage to perform a songwriting medley with Valerie Simpson of the duo Ashford and Simpson, and Mike Stoller of the songwriting team Leiber and Stoller, at Nokia Theatre L.A. LIVE.

Along with Usher’s tribute, Lady Gaga, Rihanna, The Band Perry and Sugarland each took turns on the stage for their very own performances on the CBS TV special.

The show was hosted by LL Cool J while Katy Perry and Nicki Minaj helped in presenting the nominees for the 54th annual Grammy Awards coming up on February 12, 2012.

Joining in on the music showcase, Rihanna took part in the 2012 Grammy Nominations Concert airing live from Los Angeles, CA on Wednesday night (November 30).

During the night’s event held at the Nokia Theatre L.A. LIVE, the “Umbrella” songstress performed via live feed from London’s O2 Arena while offering up a smashing performance of her hit song “We Found Love” from her just-released album “Talk That Talk”.

Also taking the stage and wowing the crowd with their impressive vocals were other stars including Lady Gaga, The Band Perry, Sugarland and Usher.

The night was led by host LL Cool J in advance of the 54th annual Grammy Awards ceremony which will air live from Staples Center on February 12, 2012.

She’s certainly a sight to see, and Nicki Minaj was front and center at the 2012 Grammy Nominations Concert in Los Angeles, CA on Wednesday night (November 30).

The “Super Bass” babe was dressed to impress as she took the stage to help present this year’s esteemed nominees - of which she found herself in the running for Best New Artist honors.

Also included in the CBS TV special, Lady Gaga, Rihanna, The Band Perry and Usher all took the stage for spectacular performances while LL Cool J led the night’s festivities as host.

As one of the most highly-anticipated award shows of the year, the Grammy’s recognize outstanding achievements in the music industry. The show will air live from Staples Center on February 12, 2012.

Tending to her young son’s health needs, Natalie Portman was busy taking Aleph to a Los Angeles doctor’s office with fiance Bejamin Millepied on Wednesday night (November 30).

The Oscar-winning beauty toted her little darling in a baby sling while protectively shielding his face from paparazzi view upon entering the local medical center.

Aside from her motherly duties, Miss Portman is featured on a new postage stage from PETA honoring famous vegetarians.

Along with the 30-year-old actress, Ellen DeGeneres, Leona Lewis, Pamela Anderson, Paul McCartney, Woody Harrelson, Steve-O, and Russell Simmons can also be seen in the new stamp collection.