- The privately-owned boat was travelling from Dorset to the Isle of Wight
- It had four people from Surrey on board when the incident happened
- They were the 14-year-old boy, who later died, and his father, a man aged in his 50s, who was the driver and owner of the boat
- Two other boys, both aged 14, were school friends of the family and one of those was seriously injured
More top news
The Royals singer said her driver was "busting a nut" about having just had a star in his car, unaware of who was now on the back seat.
New Manchester City boss Pep Guardiola has already made a mark at the club by stopping overweight players train with the first-team.
The craze criticised as a celeb-backed publicity stunt has been hailed for funding landmark research in the study of motor neurone disease.