Music and the arts are of growing interest in promoting success in school and psychological development of young people in general. However, there are few studies focused on the relationship between music and, more specifically on school engagement of vulnerable students. Thus, this exploratory study aims to understand the perceived impact of student participation in a school percussion group on school engagement. The research followed a qualitative methodology through individual semi-structured interviews. Six pupils aged between eleven and fifteen, two teachers of these pupils and two of the percussion group facilitators took part in the study. The results reveal a positive impact perceived by the participants arising from participation in the percussion group, with emphasis on the behavioural dimension of school engagement. Considering the relation between school engagement and learning processes, promoting school engagement through musical activities could be an innovative strategy to promote school success.