U2 frontman Bono's wealth is set to rocket after the sale of social media giant Facebook.
In 2009 the singer's private equity firm, Elevation Partners, invested in 1.5% of the company .
This initial purchase cost Bono's company $90 million.
Now Facebook is up for sale to the public via the stock market, at an estimated value of $100 billion.
Once Facebook's shares are launched on the stock market on Friday May 18, Bono is expected to be worth $1.5 billion.
Along with other ventures, this particular investment is set to make him easily the richest rock star in the world.
The sale will see him surpass the next wealthiest music legend, Sir Paul McCartney who is worth around $1 billion.
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