So Solid Crew frontman Megaman encouraged his friend to shoot a love rival during a revenge attack, the Old Bailey has heard.
Dwayne Vincent denies murder
Carl Morgan is alleged to have beaten up his ex-girlfriend's new boyfriend before shooting him last November.
Megaman, real name Dwayne Vincent, from Barons Court, west London, is accused of encouraging him to pull the trigger.
Mr Vincent, 26, and Mr Morgan, 24, from Battersea, south London, both deny murdering Colin Scarlett.
Mr Morgan had had a seven-year relationship and two children, aged four and two, with Mr Scarlett's girlfriend, the court heard.
'Effect' of words
Mr Scarlett was shot at his home in Tooting, south London, on 6 November last year.
Earlier that day, he and several others had beaten Mr Morgan outside his home, near to his children and in front of his ex-girlfriend.
The dispute escalated however and later that day Mr Morgan, Mr Vincent and several other friends arrived at Mr Scarlett's home in two cars, the prosecution said.
They talked and Mr Vincent told his friend to shoot Mr Scarlett, the court heard.
"Vincent, as leader, must have known what effect his words would have. Morgan pulled out his pistol and shot Scarlett," prosecutor Richard Horwell said.
He was hit in the chest, neck and right hand before Mr Scarlett took out his gun and tried to shoot Mr Morgan. He fired seven rounds but all missed, the court heard.
Mr Horwell said: "Revenge is one of the most powerful forces that drives any man.
"Four bullets were discharged. Morgan pulled the trigger and Vincent encouraged him, not only with his presence but through his words, to kill Scarlett.
"They left him and went to ground. That is the case - humiliation, revenge and execution."
Mr Horwell said Mr Vincent regarded himself as something of a leader having achieved a degree of fame as a member of the So Solid Crew - a collective of DJs, singers and MCs from south London.
"He no doubt on occasions had to fulfil his role as a leader and if one of his friends had been humiliated and beaten, he had to step in to support and avenge," he said.
The group's biggest hit was 21 Seconds, released in August 2001.
The trial was adjourned until Monday.