A pivoting headrest assembly having a pivotally supported and cable actuated hook secured to fixed bracket. The hook engages a pin associated with a widthwise extending and upwardly biased support secured within a pair of side channels associated with the fixed bracket. Upon triggering the release of the hook, the support is upwardly displaced within the side channels. A pair of end supported pivotal linkages are secured in coaxial fashion with the ends of the displaceable support. Upper ends of the linkages pivotally engage a base plate of an upper pivotally driven headrest bun support offset from a pivotal engagement established between the base plate and upper end of the headrest bracket. The linkages are configured so that upward displacement exerted by the support is converted to the forward dump rotation of the headrest bun support.