Now the go-to mini energy drink for everyone from athletes to students, 5-Hour Energy pulls in annual revenue of almost $1 billion (£798m). Bhargava, who has signed the Giving Pledge and intends to give away 99% of his fortune, is likely still a billionaire but it's unclear what his current net worth is.

However, we do know the businessman has hit headlines for the wrong reasons in recent years. In 2023, Bhargava took control of Sports Illustrated publisher Arena Group, but went on a high-profile sacking spree and the magazine – long deemed Arena's crown jewel – was eventually bought by Minute Media this March.

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