On Thursday, Michelle Obama celebrated the third anniversary of her "Let's Move" campaign with a dancing event in Chicago. The FLOTUS and some other famous people like Serena Williams, Bo Jackson, Dominique Dawes, and Gabby Douglas hopped up on stage to do dances like "throwing it away," the "dribble," and the "step-together, step-together."

"Real Housewife" Jill Zarin turns 46 today. Ben Stiller is turning 44. Actor Gael García Bernal is 31. Writer/director David Mamet is 62. Model Chanel Iman is turning 20. Director Ridley Scott is turning 72. TV legend Dick Clark turns 80 today. Billy Idol is 54. Elisha Cuthbert, the actress and ex-girlfriend of Sean Avery, is 27. Actress Amy Ryan turns 40. Performance artist Marina Abramovic is 63. Retired NFL and MLB star Bo Jackson turns 47. Watergate burglar-turned-radio host G. Gordon Liddy is 79. Clay Aiken is turning 31. And Joan Ganz Cooney, the Sesame Street creator, wife of billionaire financier Pete Peterson, and step-grandmother to PC Peterson, is 80.