G-Unit Rapper Kidd Kidd Arrested -- Cops Hunt Him Down at Concert

Kidd Kidd was scheduled to perform Tuesday night at the XXL 2015 Freshman Class concert at the Best Buy Theater ... a show that hypes up and coming rappers.

The NYPD has been on the hunt for Kidd Kidd since February, when he allegedly assaulted and strangled a woman in a domestic dispute.

Kidd Kidd was hauled off and 50 Cent and the rest of the G-Unit crew jumped into action and filled in for him at the show.

Kidd Kidd has had his problems. In 2011, he was parked outside a house in New Orleans when someone sprayed his car with bullets, hitting him 6 times ... 3 less bullets than his mentor.