The singer, 32, posted a series of pictures from the intimate gathering via her Tumblr blog the next day. They show the "Partition" singer posing in a Randi Rahm sequined gold mini-dress and nude heels, as well as petting one of the First Family's dogs. Beyoncé has a longstanding relationship with the Obama family. She serenaded the political power couple during the president's first inaugural ball in 2009, and she performed at his swearing-in ceremony in 2013. First Daughters Sasha and Malia are also big fans.