Bono is about to become the richest musician in the world, and it's not from his top-selling albums or world tours. The U2 frontman is the co-founder of the investment fund Elevation Partners, and they own a little over 2% of Facebook. They bought their stake in the company for around $90 million back in 2009, and today the company is valued at over $100 billion.

Consequently, Bono's net worth is estimated to be around $1.5 billion. Paul McCartney, who currently has the title of richest musician, has a net worth of around $665 million. We've seen musicians getting involved with social media in all kinds of ways, but it looks like Bono just outdid everybody once again.

[via MSN]