Sasha Obama and Justin Bieber pose onstage in 2011. Photo / Getty
Sasha Obama was just eight years old when her family first moved into the White House in 2009 - but now she is all grown up.
Photos emerged on Twitter at the weekend showing the Obamas celebrating Sasha's 16th birthday party.
Barack and Michelle's youngest daughter looked incredibly grown up in a red silk slip dress and layers of gold necklaces.
She took photos with her parents and posed up a storm with her girlfriends in a photo booth.
And a side note - on Twitter this weekend it was revealed that Sasha's real name is actually Natasha.
When Obama's presidency ended, his family decided to remain in Washington, rather than move back home to Chicago, so Sasha could finish high school.
"We're going to have to stay a couple of years in D.C probably so Sasha can finish [high school]," he said last year.
"Transferring someone in the middle of high school? Tough."
Malia, 18, is currently on her gap year and will attend Harvard University when the American academic year begins in a few months.
Barack and Michelle Obama have both spoken about how they tried to make sure their daughters had as normal an upbringing as possible, despite living in the White House.
In 2014 they were both named on Time Magazine's 25 Most Influential Teenagers of 2014 list.
"[Malia] has emerged as a figure of national interest," claimed the article, which also declared, "Sasha, meanwhile, has become an icon in her own right."
But in an interview on American talk show Live! With Kelly and Michael, Michelle joked that her daughters weren't worthy of the award.
"They're not influential. They just live here [points to the White House]," she said.
"They have done nothing to gain any influence.
"I don't think they realise that they're influential. I don't think anybody showed them that article. So don't mention it!" she laughed.
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