There are rumors swirling that the first lady will be serenaded by Beyoncé during her 50th birthday party. The White House won't divulge the details of the fête, but it's no secret these two are friends.
Longoria teamed up with Mrs. Obama as part of the Drink Up initiative to encourage people to drink more water last year, and she has been a longtime Obama supporter, even speaking at the 2012 Democratic National Convention where she endorsed President Obama's reelection.
Carey embraces the first lady at the 2012 BET Honors in Washington, D.C. The queen of Christmas also joined the first family in lighting the National Christmas Tree in December.
Michelle Obama and George Clooney were all smiles as they listened to President Barack Obama address guests at a White House dinner. Clooney has also held an Obama fundraiser at his home that raised $15 million.
There's nothing scandalous about this pairing. The Scandal star has been a fervent supporter of the Obamas and joined FLOTUS on stage in speaking to students as part of the Turnaround Arts Initiative.
Michelle Obama and Lady O just partied it up in Hawaii during the Obamas' vacay, but these two have been friends forever. Here they are attending Time's 100 Most Influential People in the World Gala.
The No Doubt singer and fashion designer once hosted an Obama fundraiser at her Los Angeles home.
The sexy crooner and actor looked more than eager to be in the company of the first lady as he spent the day celebrating the history of Memphis soul music at the White House.
The first lady visited with the Duchess of Cambridge at Buckingham Palace.
The dancing TV host showed the first lady some moves and it looks like Michelle can swing her hips with the best of them.
Another day. Another fundraiser. This time, SJP joins Jill Biden on stage after speaking at a Democratic National Committee event.
Prince Harry joined FLOTUS to honor military mothers at an event held at the White House.
Mrs. Obama attended the Nickelodeon's 25th Annual Kids' Choice Awards with Sasha and Malia in tow. How jealous were they that their mom got to hug T.Swift?
This time it's Michelle Obama teaching some dance moves, mom-dancing to be exact. She teamed up with Fallon for her "Let's Move" fitness initiative.
Keys posted this photo to her twitter, along with the caption. "Thank you @FLOTUS for seeing the significance of 'Mister and Pete' & raising the profile of #education in America!" She went to the White House to watch a screening of The Inevitable Defeat of Mister & Pete and discuss higher education.
Michelle hugged Kobe after the men's basketball game between USA and France during the 2012 London Olympic Games.
The tennis pro tweeted this pic of the first lady, with the caption, "A behind-the-scenes look just before the First Lady & @SerenaWilliams kick off Kids' Day at the #USOpen. #LetsMove."
Neil Patrick Harris joined the Obamas and Modern Family's Rico Rodriguez as they belted out a tune during the 90th Annual National Christmas Tree Lighting Ceremony.
Blake Lively looked on happily as she attended a workshop for high school students about careers in film. The Gossip Girl star has also stumped for President Obama.
Cosgroved and FLOTUS posed for a photo backstage at a special military family screening of Nickelodeon's iCarly.
MORE PHOTOS: Stars meet the president