'OMG! It's Justin!' Obama's daughters fulfill every teenage girl's Christmas dream as they sing carols with Bieber (while Mom and Dad keep a watchful eye)

By Associated Press and Rachel Quigley

Last updated at 5:30 PM on 12th December 2011

If there was ever a perk to having a President for a father, the Obama girls discovered it yesterday.

Forget holidaying in Martha's Vineyard, trips to Africa, meeting the Muppets or even touring the Harry Potter set - Malia and Sasha Obama's dreams came true when they met heartthrob Justin Bieber.

Becoming the envy of practically every teenage girl and young woman across the world, the girls got the once-in-a-lifetime chance when they participated in the 30th annual Christmas in Washington concert.

Singing with the stars: (l-r) Conan O'Brien, Michelle Obama, Sasha, Malia, Barack, Jennifer Hudson, Victoria Justice and Justin Bieber attend the Christmas In Washington concert tonight

Are you real? Malia Obama can't believe her luck as she gets to meet Justin Bieber onstage during Christmas in Washington 2011 at the National Building Museum yesterday

Big fans: Sasha Obama looks equally as thrilled to meet the teenage heartthrob while Malia gazes at him adoringly

The Obamas - along with a host of other stars including Jennifer Hudson, Cee Lo Green and Conan O'Brien - got in the festive spirit yesterday for the concert of Christmas carols to benefit the Children's National Medical Center in the capital.
Though President Obama ensured he put himself between his eldest daughter Malia and the pint-sized singer, the 13-year-old spent most of the concert sneaking adoring looks at him.
After a moving rendition of 'Hark! The Herald Angels Sing', Malia and her younger sister Sasha, ten, ensured they got to meet Bieber in person as soon as the concert ended.
Wearing a yellow, bell-sleeved mini dress, Malia looked like all her Christmases had come at once as she chatted with the star - who looked dapper in a white and black suit.
At one time she reached out to touch his shoulder - a hand that she may never wash - as Sasha stood by her side, waiting for her turn.
When the 'Baby' singer give her a hug, the ten-year-old - wearing a pink strappy party dress - beamed from ear to ear as well as looking a little shell shocked that it was actually happening.
The singer, who is dating Selena Gomez, tweeted afterwards: 'Great night! President Obama is one cool Prez. He told me he was "chillin". #PresidentialSWAG.'

Sasha Obama and Justin Bieber pose onstage

A family affair: Justin Bieber shakes hands with Obama who he calls 'one cool Prez' and gives youngest daughter Sasha a cuddle as she beams from ear to ear

Parent's approval: Mother Michelle Obama takes her turn at meeting the teenage heart throb her two daughters swoon over

U.S. President Barack Obama gives a high five to a child, dressed as an elf

US President Barack Obama (right) and First Lady Michelle Obama greet children dressed as elves

High five: Barack Obama greets a child dresses as an elf (left) as First Lady Michelle also said hello

Santa's little helpers: Barack Obama and wife Michelle along with daughters Sasha (left) and Malia greet patients from the Children's Medical Center dressed as elves at the annual Christmas In Washington concert

In honour of the 'season to celebrate miracles', Obama spoke about the story of Jesus' birth during a short speech to the crowd.

He said the story of Jesus Christ has changed the world by teaching basic values such as loving one another, serving the less fortunate and keeping faith.

Obama said: 'Those are values that are shared by all faiths. Let us all rededicate ourselves to each other in that spirit.'

Before the concert, the Obamas greeted patients of the children's medical center dressed as elves and presented them with a basket of books.

Looking festive: The Obama family gather under the Christmas tree as they attend the 30th fundraising carol concert in the capital

Stars: Justin Bieber (left) and Victoria Justice (right) performed

Festive: The National Building Museum in Washington DC was packed out for the show

Obama playfully struggled to lift the basket and asked the elves to help him place it under the Christmas tree.

Justin Bieber, Cee Lo Green, Jennifer Hudson, The Band Perry and Nickelodeon star Victoria Justice took turns singing holiday classics. Bieber, 17, sang his Christmas hit 'Mistletoe'.

Jennifer Hudson sang 'Do You Hear What I Hear' with the help of the American Family Choir.

Christmas greetings: Barack Obama, wife Michelle and daughters Sasha (left) and Malia (right) say hello th a group of children dressed as elves

Star studded: Comedian Conan O'Brien (left) hosted the event, and Cee Lo Green (right) performed

Group shot: Malia and Barack Obama stand with Jennifer Hudson, Victoria Justice, and Justin Bieber before singing Hark! The Herald Angels Sing

She told the crowd: 'I don't know how many times I've sang for the president, but every time feels like the first time.'

Other entertainers included the United States Naval Academy Glee Club, Washington Youth Choir, United States Army Band Herald Trumpets, Ian Fraser and the Christmas In Washington Orchestra.

To end the evening, the First family gathered with the performers to sing Hark The Herald Angels Sing.

The concert will air on Friday on TNT.

The most wonderful time of the year: President high-fives a young patient as they excitedly crowd round the Obamas at the carol concert in the National Building Museum