He was born late at night on April 29.

So, it went out officially as the 30th.

So I just do both days."

Willie Nelson

Credit:Kevin Kane/Getty Images for The Rock and Roll Hall of Fame

Williesdaughter Lanashared more of the story.

Turns out that the country legend celebrated his birthday on April 29 until he was 18.

Willie being Willie, he just decided to celebrate both.

However you count his birthday, Willie is celebrating his 90th one this year.

By our count, thats four birthday parties this year, which is befitting of the legend.