Background:Adolescence is a critical developmental stage marked by emotional and psychological changes. Music, as a universal and accessible tool, has been shown to influence emotional regulation positively. Objective:To investigate the relationship between daily music listening and emotional regulation in teenagers, examining its psychological, physiological, and social dimensions.Methodology:A mixed-methods approach was employed, involving 420 teenagers aged 13–19 years. Data were collected through structured surveys (to assess music habits and emotional regulation using the Difficulties in Emotion Regulation Scale), semi-structured interviews (to explore personal and social uses of music), and physiological measurements (heart rate and galvanic skin response) during music-listening sessions.Results:Survey findings showed that 87% of teenagers listened to music daily, reporting better emotional regulation scores (average DERS score: 55) compared to less frequent listeners (DERS score: 65). Interviews revealed themes of emotional validation, stress reduction, and social bonding through music sharing. Physiological data demonstrated decreased heart rates (-10 bpm) and reduced GSR (-15%) during calming music, indicating relaxation. Upbeat music increased arousal markers, enhancing energy and mood.Conclusion:It is concluded that daily music listening enhances emotional regulation in teenagers, providing a versatile and accessible method to manage emotions. Encouraging intentional music use can support emotional well-being and resilience, with implications for educators, parents, and mental health practitioners.