Kobzon has performed at the 20th anniversary of 'Donbas fraternity' held in Moscow, Censor.NET reports.
'DPR' leaders Alexander Zakharchenko and Denis Pushilin visited the concert.
"DPR" militant chieftain Arsen 'Motorola' Pavlov was assassinated in Donetsk in October.
Related materials: Arsen Pavlov murder
Footage of "DPR” rescuers taking terrorist 'Motorola’s body and inspecting elevator released online. VIDEO(0)