International audience; Leisure activities can be a considerable source of noise exposure, and of several activities, music festivals have been reported as the loudest. Even though a number of attendees report temporary hearing loss, dullness or tinnitus after music festivals, the majority of young adults do not wear hearing protection. Recent studies have shown that temporary threshold shifts (TTS) after noise exposure might not be as benign as previously thought, and may co-occur with permanent damage to the inner-hair-cell synapses (cochlear synaptopathy) which cannot be detected via the audiogram. This study investigates how (audiometric and distortion-product otoacoustic emission) threshold measures and supra-threshold measures associated with synaptopathy (auditory evoked potentials, AEPs) change before and after attending music events to elucidate whether attendees had TTS and signs of permanent hearing damage. 19 normal hearing, young adults (18-25 years) attended one or two music festivals in summer 2019. One-to-two days before the event, hearing status was assessed using a test battery including questionnaires, PTA, DPOAE, AEP and speech reception threshold measurements. Auditory status was evaluated again at one, three and five days after the event. TTS was observed in some but not all listeners, and the associated AEP changes will be discussed. The outcomes of this study are important towards evidence-based hearing-loss prevention during leisure activities.