12/12/2011 07:38 am ET | Updated Dec 12, 2011

Obamas Attend Mass, Greet Justin Bieber In First Family Style (PHOTOS)

It was a busy day at the White House yesterday as President Obama, Michelle and daughters Malia and Sasha attended mass in the morning and later, celebrated Christmas in prime American style by attending a Justin Bieber concert.

Two days after the Obamas and the Bidens celebrated Hanukkah at the White House (with a festive blue motif), the First Family rang in the holidays again.

And it was the Obama girls that caught our style eye.

Sasha and Malia looked impossibly chic on their way to church; we're especially loving Malia's pink coat with white detail, paired with maroon gloves and maroon tights. Sasha and Mrs. O went more traditional, in a black coat and a khaki dress and coat with classic pearls, respectively.

And later, the presidential family attended the TNT "Christmas in Washington" show at the National Building Museum, hosted by Conan O'Brien and starring a very dapper Justin Bieber.

While Michelle looked elegant in green Cushnie et Ochs, Malia wins our sartorial prize with her ultra-chic yellow dress with bell sleeves and chain necklace. Sasha also glowed in a purple dress with maroon tights (did she borrow them from her sis?).

During the show, the Obamas were treated to music from Cee Lo Green, Jennifer Hudson and, yes, Bieber, and O'Brien poked fun at Michelle Obama's healthy eating initiative, according to Reuters:

"It's not easy to be a child at the White House these days. Santa's probably not going to stop at a house that leaves out a cup of organic soy milk and a plate of celery cookies," he said, to laughter.

Last month, we also caught the Obama girls looking fab at the annual pardoning of the Thanksgiving turkeys. Style icons in the making? You'd better hold onto your crown, Michelle.

See photos of both events below, including our fave: Sasha shyly receiving a hug from Justin Bieber (every girl's dream!).

obamas mass (CLONED)