A headrest for a vehicle seat, comprising a support configured to receive and support the head of a seat occupant, and, connected to said support, at least one speaker system comprising: a speaker unit comprising a loudspeaker received in an airtight housing, a guide system for guiding the speaker unit relative to the support of the headrest, said guide system being configured so that the speaker unit can transition from a first usage position to a second usage position, and vice versa, the transition from the first usage position to the second usage position, and vice versa, corresponding to a movement combining a translation of the speaker unit and a rotation of the speaker unit.