The purposes of the study are to describe characteristics of the voice change in sixth-, seventh-, and eighth-grade choir students using Cooksey's voice-change classification system and to determine if the singing self-efficacy of adolescent males is affected by the voice change, grade level, and experience. Participants (N = 80) consisted of volunteer sixth-grade, seventh-grade, and eighth-grade males enrolled in a public school choral program. Participants completed the Singing Self-Efficacy Scale for Emerging Adolescent Males (SSES). After completing the SSES, participants were individually audio-recorded performing simple vocal exercises to attain each boy's vocal range. Results revealed that 45% of sixth-grade participants, 48.15% of seventh-grade participants, and 87.88% of eighth-grade participants were classified as changing voices. Results of a three-way between-subjects ANOVA revealed no main effect for voice-change stage or grade level. A main effect was found for experience, favoring participants with 3 or more years of experience in choir. No statistically significant interactions were found.