(Photos from left: Jason Merritt/Getty Images for MTV, Andrew Harrer/Bloomberg via Getty Images)
It's no secret that First Lady Michelle Obama and daughters Malia and Sasha are crazy in love with Beyoncé Knowles. The superstar serenaded the Obamas at their first inaugural ball in 2009, has joined forces with the first lady in her Let's Move! initiative, and performed at the president's 2014 swearing-in ceremony. The first lady and her daughters also attended a Beyoncé concert in Chicago last year. And, she performed at Michelle Obama's 50th birthday party in January.
On the occasion of the entertainer's 33rd birthday, the first lady sent her this tweet, praising her as an "Incredible role model."