Guildford Crown Court heard that N-Dubz rapper Dappy sparked a "mob attack" when he spat at two girls who refused to get into a car with him and his friends.
Onlooker David Jenkins defended the girls after the rapper allegedly called them 'sluts' and 'ugly', and proceeded to put Dappy in a headlock, after the rapper swung a punch at him.
Dappy was joined by two other men and the incident at a petrol station in Guildford turned into a "mob-handed, utterly unlawful and aggressive attack" said Prosecutor Brian Stork.
A saliva stain on alleged victim David Jenkins' t-shirt has a "billion to one" DNA link to Dappy.
The rapper denies 2 counts of common assault on the two women, one of assault by beating, of Mr Jenkins, and one of affray.
The trial continues tomorrow.
More top news
The early-morning operation targeting drug gangs saw 25 suspects arrested and 40 properties searched in Croydon, Wandsworth and Lewisham.
Despite all her success so far, she raps about how she doesn't have all the answers and is trying to figure life out.
British Transport Police officers are investigating the death on the travelator, which is not believed to be suspicious.