What role in their respective bands links Brent Smith and Mike Score?
Brent Smith: Brent Stephen Smith (born January 10, 1978), known professionally as Brent Smith, is an American singer, songwriter, and musician best known as the lead vocalist of the band Shinedown. Mike Score:  He is best known as the keyboardist, guitarist and lead singer of the new wave band, A Flock of Seagulls.
lead vocalist