Watch: SYSTEM OF A DOWN’s SERJ TANKIAN And JOHN DOLMAYAN Perform ‘Aerials’ With Cover Band On Mexican Street

Serj Tankian and John Dolmayan of SYSTEM OF A DOWN played the band’s song “Aerials” with the rock covers outfit MÉDIUM this past Friday, July 15 during John’s 50th-birthday celebration in the streets of San José del Cabo, Mexico. Video of the performance can be seen below.
Dolmayan is married to Dia…