LAKE OF THE OZARKS -- Leap Day is a day that doesn't come around often.
Most of us celebrate our birthdays once a year.
But for some people, the occasion comes only once every four years.
Four years ago we introduced you to baby Ty Carr.
His mom Kanesha Carr gave birth to the little bundle of joy just two hours before we spoke with
them at Lake Regional Hospital.
Ty shares his birthday with less than one percent of the world’s population.
That's because he was born on you guessed it, leap day.
"I’m very proud,” Kanesha said. “It wouldn't matter what day he was born on."
Now, four years later Ty is in preschool and is celebrating his first birthday, no, make that his fourth birthday.
"I’m four now,” Ty said.
Ty has grown quite a bit since we last saw him.
"He weighed 7lbs 2 oz. and now he weighs 41lbs and he's over 3 feet tall," Kanesha said.
Ty is so young he doesn't really understand why the day he was born on stands out so much, he's more interested in cake and presents.
"I want a car, a hot wheels car,” Ty said.
But one day, the little guy will realize the odds of being born on leap day.
“It’s like one in 1500 chance to be born on leap day,” Kanesha said. “He wasn't due on leap day. He was 10 days early and it was a huge surprise."
But don't worry, in the off years Ty still celebrates turning another year older.
"He's the only grandchild so far on both sides, so he's spoiled," Kanesha said.
Ty is one of an estimated 187,000 people in the United States and 4 million people in the world who were born on leap day.
Leap day is tacked onto every 4th February to keep the calendar in sync with the earth's revolution of the sun.