Bono - Bono's Stake In Facebook Quadruples In Value

The rocker purchased 1.5 per cent of the company for $195 million (£130 million) last year (10) as the managing director of Elevation Partners, the investment firm he co-founded in 2001.

Now his slice of Facebook, co-founded by Mark Zuckerberg, is worth a staggering $728 million after the popular site's value rocketed to $50 billion earlier this month (Jan11).

Bono will be able to cash in his share once the privately-held site is floated on the stock exchange.