Is it possible to rotate a child object regardless of the parent rotation ?

Hi to all

In my game i have a npc model that control by a script w$$anonymous$$ch use unity navmesh for navigation . my npc has a c$$anonymous$$ld game object with name "AIHead" for controling npc head.i want my npc be able to look at other gameobjects(i.e. enemy)by rotating her/$$anonymous$$s head since itself goes in different direction. Is it possible by t$$anonymous$$s line of code:

 Headobject.lookat(target.position);