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1. April Fool's Day
The day of hoaxes and pranks goes back at least to the Middle Ages.
Jon Gosselin—born on April Fool's Day—went from from reality television fame on Jon & Kate Plus Eight to postdivorce tabloid infamy.
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2. April Fool's Day
Rachel Maddow, the left-leaning host of a nightly MSNBC show, also has an April Fool's Day birthday.
3. April 15—Tax Day
Your taxes are due on April 15—even if it's your birthday, like Dara Torres, the first swimmer to compete in five Olympic Games.
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4. April 15—Tax Day
As a British actress, however, Harry Potter Emma Watson probably doesn't have to worry about paying Uncle Sam on her Tax Day birthday.
5. September 11
Harry Connick Jr.'s birthday is also the anniversary of one of the darkest days in American history.
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6. September 11
Rapper and actor Ludacris was born on September 11, 1977.
7. Pearl Harbor Day—December 7
After the Imperial Japanese Army attacked Pearl Harbor in 1941, Franklin Delano Roosevelt called December 7, "a day which will live infamy." It's also actress Ellen Burstyn's
8. Pearl Harbor Day—December 7
Hall of Fame baseball player Johnny Bench was born on the sixth anniversary of Pearl Harbor Day.
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9. Boxing Day—December 26
What's wrong with having a birthday the day after Christmas? You get fewer presents and you don't even get the day off work. Just ask actor and musician Jared Leto.
10. Boxing Day—December 26
Musician and American Idol finalist Chris Daughtry was also born on Boxing Day.
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11. New Year's Day
Having a birthday on New Year's Day sounds like a party, but most restaurants are closed and all your friends are probably nursing a hungover. Tiger Woods' wife, Elin Nordegren, has a birthday on this downbeat day.
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12. New Year's Day
Star of the movie Frost/Nixon Frank Langella also celebrates a January 1 birthday.
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13. Valentine's Day
Just try getting a birthday reservation at your favorite restaurant if your birthday is Valentine's Day. And can you imagine the pressure on your significant other? Opera star Renée Fleming has Valentine's Day birthday.
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14. Valentine's Day
Teller, the shorter, quieter half of the edgy magic duo Penn and Teller also has a Valentine's Day birthday.
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15. Leap Year Day—February 29
Acclaimed self-help speaker and author Tony Robbins may be 50 years old...but because his February 29 birthday only comes once every four years, he's only had as many birthday parties as an eighth-grader.
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16. Leap Year Day—February 29
Rapper Ja Rule's next chance to celebrate his true birthday comes in 2012. Though born in 1976, it will only be his ninth.
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17. Ides of March—March 15
The Ides of March was a just a market day on the ancient Roman calendar—until Julius Caesar was murdered in the Roman forum on the day. Ever since, it's been one to "beware," even for musician and television host Mark McGrath as he celebrates his birthday.
18. Ides of March—March 15