Young Buck surrendered Friday to face allegations that he stabbed a man who had punched hip-hop superstar Dr. Dre during the taping of the Vibe awards show, authorities said.

Lt. Frank Fabrega said rapper Young Buck, whose real name is David Darnell Brown, had turned himself in, but provided no further details. Defense attorney Scott Leemon said the rapper would post the $500,000 bail.

Police issued an arrest warrant for Brown after authorities identified him on a videotape of a melee that erupted during the taping of the Vibe Awards on Monday in a hangar at the Santa Monica Airport.

The brawl began when a man approached Dr. Dre and punched him as he was about to receive a lifetime achievement award. Police allege that Young Buck, 23, then stabbed that assailant.

That man was later identified as Jimmy James Johnson, 26, from Los Angeles. Johnson suffered a collapsed lung and was in stable condition Wednesday. Police have been unable to interview him due to his medical condition, Fabrega said Thursday.

Investigators were also trying to identify two other men seen holding knives during the fight.

Young Buck is signed to Dr. Dre's record label, and his debut solo album, "Straight Outta Ca$hville," debuted at No. 3 on the Billboard charts in August.