The current study investigated the effect of the Karaoke application on enhancing EFL pronunciation skills of first-year secondary school students and their attitudes towards mobile-assisted language learning (MALL). The study employed a quasi-experimental research design (one experimental group). This study's participants were thirty (n = 30) secondary-stage students. The instruments of the study were designed by the researcher, namely, an EFL pronunciation skills checklist, a pre-post EFL pronunciation skills test, and an attitude scale. Data was statistically analyzed through using the Statistical Package for Social Science. Based on the study results, there is evidence that the Karaoke application for enhancing EFL pronunciation skills of first-year secondary school students and their attitudes towards MALL proved effective. The study recommends investigating the potential of using the Karaoke application to enhance other language skills, including fluency and oral comprehension and examining other advancements in MALL applications and tools with EFL secondary school students.