What happens when the queen, aka Beyonce, goes to the first lady's birthday party?
According to reports, she sings hit after hit and parties with Michelle Obama at the White House until 2am. President Barack Obama threw the big bash for his wife on Saturday to celebrate Michelle's 50th birthday with their close friends and loved ones.
Beyonce stunned in a Randi Rahm gold Mallory cocktail dress while performing her hits including Single Ladies and Irreplaceable for guests.
Other performers included Stevie Wonder and John Legend, who serenaded the first lady with a rendition of Happy Birthday.
When her beats weren't penetrating the walls of the White House, Beyonce buddied up with Bo, the first family's dog.
Official pictures from inside the celebration have not yet emerged, but the singer shared snaps of her ensemble, makeup, and Bo on her Tumblr page.