Dewey (1938) once wrote that the most effective forms of learning connect intellectual processes with emotion, which is able to inspire curiosity and excite the learner. This paper adds to the body of research that attests to the transformative role of affect in teacher education, which is able to be cultivated through arts-based service-learning experiences. Pre-service teachers at two universities in Sydney, Australia were placed in service-learning settings that were based around participatory experiences in drama and storytelling, music, dance or visual art. The pre-service teachers' reflections on the placement revealed a transformative experience which combined emotional learning with critical analysis of social justice issues as they relate to education. As part of their placement, they experienced arts engagement that utilised affect and emotion as a transformative pedagogy. They broadened their understanding of the role of teachers, both in an institution and in society. These emerging understandings led them to find voice as advocates, investigate arts education and community projects as alternative career paths and re-evaluate their own perceptions of quality teaching. Some participants continued engaging with the community arts projects after the placement had concluded, and others became advocates for the arts in education and society. Finally, they adopted a critical stance on social justice issues, and shed light on the ways that arts learning service-learning placements can become deeper engagements, leading to sustainable benefits for all parties.