Following George's death in 2001, Dhani launched his professional music career by finishing his father's last album Brainwashed and promptly won a Grammy for one of the songs.

He went on to form the digi-rock band Thenewno2, enjoyed a successful stint as a composer, and has also released a solo album.

The richest of all the Beatles children, Dhani was a major beneficiary of his father's multimillion-dollar estate along with his mother. Sources calculate his fortune to be in the region of $275 million (£217m).

Now discover the rich and famous who won't leave their money to their kids

Which of The Beatles' kids is richest today?