Beyoncé
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.
Eva Longoria
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.
Mariah Carey
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.
George Clooney
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.
Kerry Washington
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.
Oprah Winfrey
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.
Gwen Stefani
The No Doubt singer and fashion designer once hosted an Obama fundraiser at her Los Angeles home.
Justin Timberlake
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.
Kate Middleton
The first lady visited with the Duchess of Cambridge at Buckingham Palace.
Ellen DeGeneres
The dancing TV host showed the first lady some moves and it looks like Michelle can swing her hips with the best of them.
Sarah Jessica Parker
Another day. Another fundraiser. This time, SJP joins Jill Biden on stage after speaking at a Democratic National Committee event.
Prince Harry
Prince Harry joined FLOTUS to honor military mothers at an event held at the White House.
Taylor Swift
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?
Jimmy Fallon
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.
Alicia Keys
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.
Kobe Bryant
Michelle hugged Kobe after the men's basketball game between USA and France during the 2012 London Olympic Games.
Serena Williams
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
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
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.
Miranda Cosgrove
Cosgroved and FLOTUS posed for a photo backstage at a special military family screening of Nickelodeon's iCarly.