In a world with nearly 7 billion people, chances are someone famous is celebrating their birthday today.
And indeed: Olivia Newton John, Serena Williams, and more will all be blowing out candles today. Will it be your favorite TV personality? Maybe an important figure from history?
Help us celebrate the birth of some of the world's coolest people by taking a scroll through some of the most noteworthy birthdays of September 26 -- enjoy!
Click here for Friday's famous birthdays.