First Lady Michelle Obama will be feted at the White House Saturday night when President Obama throws her a dance party for turning the big 5-0. And the birthday wishes for the First Lady poured in on social media Friday, from her push-up buddy Ellen Generes to the president - the kid president that is.#1 Justin Timberlake
#2 Kerry Washington
Happy 50th Birthday, @FLOTUS!! You are an inspiration for so many and one of the most beautiful people I've ever met… Inside and out.
- Justin Timberlake (@jtimberlake) January 17, 2014
#3 Ellen Degeneres
#4 President Bill Clinton
#5 Robin Roberts
- Robin Roberts (@RobinRoberts) January 17, 2014
#6 Dr. Jill Biden
#7 Rachael Ray
- Dr. Jill Biden (@DrBiden) January 17, 2014
Happy Birthday @MichelleObama, a First Lady who puts country & kids first. Here's to at least 50 more healthy, fulfilling years. Cheers!
- rachael ray (@rachaelray) January 17, 2014
#8 Kid President
#9 William Shatner
I understand it's @MichelleObama's birthday! Happy 29th Michelle!
- William Shatner (@WilliamShatner) January 17, 2014
#10 The Cast of Sesame Street
- Sesame Street (@sesamestreet) January 17, 2014