Tragedy: George Verrier died after refusing treatment for his injuries
George Verrier, 17, was given first aid by police after 'mayhem' broke out at around 12.45am yesterday in Bromley, south-east London.
The teenager was among 100 guests at the party of friend Madison Moran.
The 16-year-old is a student at the Brit School for performing arts in Croydon, whose former pupils include singers Adele, Jessie J and Amy Winehouse.
After the party George was involved in a fight involving more than a dozen others.
Police say he was offered first aid at the scene for a head injury and was advised to go to hospital but he declined.