Here's a look at some notable birthdays being celebrated today:

Betty White
Age: 90
Occupation: Actress, Comedienne, and Empress of Awesome
Known For: Her iconic TV roles on 'The Mary Tyler Moore Show' and 'The Golden Girls,' her current gig on 'Hot in Cleveland,' being the only woman to have an Emmy in all female performing comedic categories, and a late-in-life career surge that's made her one of entertainment's hippest commodities

Muhammad Ali
Age: 70
Occupation: Retired Professional Boxer and Current Philanthropist
Known For: Bringing beauty and grace to boxing, being the first and only three-time lineal World Heavyweight Champion, being nicknamed "The Greatest," taglines like "float like a butterfly, sting like a bee," being crowned 'Sportsman of the Century' by Sports Illustrated in 1999, and being a longtime sufferer of Parkinson's disease

James Earl Jones
Age: 82
Occupation: Actor
Known For: Roles in dozens of films including 'Dr. Strangelove' and 'The Hunt for Red October,' winning two Tonys on Broadway, and using his distinctive bass voice in numerous voiceover roles, most notably as Darth Vader in the 'Star Wars' franchise

Michelle Obama
Age: 48
Occupation: First Lady of the United States
Known For: Being a graduate of Princeton University and Harvard Law School, her nearly 20-year marriage to President Barack Obama, being an advocate for poverty awareness and healthy eating, her modern sense of style, and having arms so toned she could probably beat any of her detractors into submission

Kid Rock
Age: 41
Occupation: Singer, Rapper, Songwriter and Musician
Known For: Six platinum albums, hit singles like 'Cowboy,' 'Picture' and 'All Summer Long,' a brief marriage to Pamela Anderson, and legal trouble including a hilarious and image-consistent brawl at a Waffle House

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