This research explores diverse vocal styles from three distinct musical cultures: Irish traditional, Flamenco, and Persian Classical; and how they can enrich and extend the composition and performance of contemporary commercial music (CCM). Although fusion music exists in CCM, there is little research into the benefits that non-Western styles can provide for CCM vocalists, musicians and composers. This has left a gap in literary resources which may benefit the artistic practice of CCM artists. This research explores my own investigation into learning Irish traditional, Flamenco and Persian Classical vocal styles, and how I implemented them in my own performances and compositions. Qualitative research was employed through one-on-one vocal tuition, interviews, and workshops with professionals in each chosen style. Research also included listening to music from each style, attending concerts, and analysing case studies of successful cross-cultural musics within CCM. Furthermore, the historical, cultural and musical components of Irish traditional, Flamenco, and Persian Classical music were investigated to inform me of the key areas that needed to be implemented within my own performances and compositions in each style. As a singer-songwriter, my exploration of these musics is demonstrated in a seven-track album, each song implementing the musical characteristics of at least one chosen style. My own exploration demonstrates the benefits of exploring music from diverse vocal cultures to expand and enrich artistic practice. It also highlights the need for further investigation into non-Western musical cultures by other CCM practitioners (vocalists, musicians, composers and teachers). Ultimately, this dissertation can contribute to the field of CCM and may inspire further investigation of non-Western styles by other CCM scholars, teachers and artists.