Olympic gold medalist and 18-time NBA All-Star, LeBron James

The NBA player has now accomplished something no one would have thought possible.

Over the past 12 months, earnings totaled $121.2 million before taxes and agents' fees.

James has become a billionaire while still playing basketball, according to Forbes.

According to Forbes, the 37-year-old superstar is worth $1 billion.

For just the fourth time in 19 seasons, James missed the playoffs this year

A prophetic James said, "It's my biggest milestone." Of course. Maximizing my business.

Likewise, if I happen to be a billion-dollar athlete, ho. Hooray! My God, I'm gonna be excited."

To the tune of $1.2 billion in pretax earnings, James has maximized his business.

His salary with the Cleveland Cavaliers, Miami Heat and Los Angeles Lakers exceeds $385 million.

In endorsements and other business ventures, he has earned upwards of $900 million.