Rapper Jamal Green, aka Mazaradi Fox, 43, was shot dead by a masked gunman in an ambush on an SUV in Queens, New York

Hip-hop star 50 Cent promoted his headphones brand as he offered ­condolences to the loved ones of a murdered friend.

Rapper Jamal Green, aka Mazaradi Fox, 43, was shot dead by a masked gunman in an ambush on an SUV in New York on Friday.

He suffered fatal gunshot injuries to the chest during the attack in Queens and was said to have stumbled from the vehicle before collapsing and dying in a nearby driveway.

Childhood friend 50 Cent, 38, real name Curtis Jackson, ended his tweet with his customary hashtag #smsaudio.

Fox, who was a member of 50 Cent’s crew G-Unit, was released from jail two weeks ago after serving two years for attempted assault. He had a previous conviction for attempted murder.

Three other people who were in the car were also wounded in the attack, one of them – a man – critically.

A 22-year-old man was shot in the arm and a woman in her 20s suffered a graze to the neck.

Fox had said of 50 Cent: “We going to be homeboys till we’re buried.”

Local resident Devon Powell told the New York Post he heard the gunfire, but at first thought it was fireworks.

“It was like bap, bap, bap, bap!” he said, before he looked out of his window and “saw a white dude bleeding in the car.”