Tennis legend Roger Federer loses billionaire status Tennis legend Roger Federer is no longer a billionaire. The 20-time Grand Slam champ lost a fortune when luxury sneaker brand On suffered a share price collapse as a result of softer sales than forecast. According to Forbes, the 19 per cent plummet was worth at least…

…has not yet matched.Is any K-pop idol a billionaire?No K-pop idol has publicly confirmed billionaire status. The closest figure in the K-pop ecosystem is HYBE founder Bang Si-hyuk, who is an executive rather than a performer. Bang Si-hyuk, the founder of HYBE, is the industry's only billionaire with a net worth estimat…