U2’s Bono just became a lot richer and it’s not because of his music by Laura Lorenzetti @FortuneMagazine 1:34 PM EDT E-mail Tweet Facebook Linkedin Share icons U2 frontman Bono made a very savvy (and lucrative) business decision, and it doesn’t have anything to do with a new world tour tickets or mass-released iTunes album. It’s a shrewd investment in Facebook FB . Bono’s Facebook investment—which was purchased for about $76 million back in 2009 through his co-founded investment group Elevation Partners—has raked in nearly $1 billion, according to the Mirror. The sum represents a 2.3% stake in the social media network. While that’s a nice return on his initial investment, not all the cash belongs to Bono. Fortune’s Dan Primack breaks it down, explaining that Bono will take home a small portion of that sum since Elevation Partners, which is responsible for the investment, consists of six partners that split the returns. Not only that, but Elevation only takes about 20% of its profits with the rest going to limited partners. So, a $1 billion investment actually turns out to be a much smaller take home pay for Bono, meaning Sir Paul McCartney may still be safely holding onto his title as the world’s richest pop star.