Yes, Zac Brown is indeed the lead singer of the Zac Brown band.
Crossover definition, a bridge or other structure for crossing over a river, highway, etc. See more.
cross over, 1  Biology. (of a chromosome segment) to undergo crossing over. 2  to switch allegiance, as from one political party to another. 3  to change successfully from one field of endeavor, genre, etc., to another: to cross over from jazz to rock. 4  to die; pass away.