A native of South Korea, Young-Jun Ahn studied singing at the universities of Kosen and Sejong. In 2011–12 he was awarded Third Prize at the Osaka International Music Competition. From 2007 to 2011 he was a member of the professional state chorus in Namyangju. In 2015 he embarked on postgraduate studies in singing at the Hochschule fur Musik, Theater und Medien Hannover under Markus Schafer, and in 2016 won both the Sparda-Bank Audience Prize and Third Prize at the Klassik in der Altstadt Hannover. He is a member of the chorus of the Staatsoper Hamburg.