This study aimed to determine the effectiveness of P.O.W.E.R.F.U.L approach, in enhancing the speaking skills of Grade 11 students at Fernando Air Base Integrated National High School in terms of vocabulary, grammar, pronunciation, and fluency. The researcher hopes that the problems encountered in speaking might be alleviated through the study's outcomes and further promotes the use of the approach used in this study. The use of this approach paved the way to enhance further speaking competence in vocabulary, grammar, pronunciation, and fluency. This might open doors to those students who are hesitant to express their ideas in speaking not only in English subjects but also in other disciplines. Through the study's findings, the possible approaches in further promoting this approach will be clear and hopefully effective. Meanwhile, the study's findings on enhancing the students' speaking skills using P.O.W.E.R.F.U.L approach resulted in significant differences in the speaking skills of the respondents in terms of vocabulary, grammar, pronunciation, and fluency. The results revealed that in terms of speaking skills, students have improved. This demonstrates that the P.O.W.E.R.F.U.L approach significantly improved students' speaking skills and confidence in delivering impromptu speeches and other speaking performances.