This research aims to determine whether using English songs can improve students’ vocabulary mastery. This research used a quasi-experimental design. The subjects of this research were 64 junior high school students from two classes, 7C as the control class and 7D as the experimental class. The research instrument used a vocabulary test by completing the empty song lyrics. In collecting the data, used try-out, pre-test, and post-test. Based on the research's findings, the experimental class's mean post-test score was 87.19 and the control class was 57.50. The hypothesis testing used the Independent T-test, which showed that the significant value in this post-test mean score was 0.001, which means lower than 0.05 or 0.001 < 0.05. It can be concluded that the mean score of the post-test has a significant difference, H1 was accepted and H0 was rejected, meaning that using English songs can improve students' vocabulary mastery.
Keywords: Song, Vocabulary, Experimental Study