So Solid Crew frontman Megaman told his friend to shoot a man during a revenge attack, the Old Bailey has heard.
Dwayne Vincent denies murder
A witness told police Megaman said to friend Carl Morgan to "burst" him - street slang for shoot, the jury heard.
Mr Morgan, 24, is alleged to have shot his ex-girlfriend's new boyfriend last November after he was beaten up by him.
Megaman, 26, real name Dwayne Vincent, from Barons Court, west London, and Mr Morgan, from Battersea, south London, both deny murdering Colin Scarlett.
The witness, known only as A and speaking from behind screens through a voice distorting machine, told police how Megaman had confronted Mr Scarlett before any shots were fired.
He said Megaman had mentioned disrespect, but when the claims were read out in court on Tuesday, the witness said he did not remember him saying it.
Prosecutor Richard Howell said 'A' told the police he had seen "two quick flashes".
According to his account to police, the witness said: "The gun Morgan had was black in colour and the bullets were in a magazine in the handle.
"Colin then pulled out a gun that looks the same as Morgan's.
"They were both firing - I do not know how many times. There were loads of bangs and flashes.
"Megaman ran off in the same direction as Morgan."
Mr Scarlett had dropped in the road, saying he had been shot, according to the witness's statement to police.
Mr Morgan had had a seven-year relationship and two children, aged four and two, with Mr Scarlett's girlfriend, the court heard.
Mr Scarlett was shot at his home in Tooting, south London, on 6 November last year.
The case continues.