This study examines the use of colloquial language in the song lyrics of Olivia Rodrigo’s album SOUR through a sociolinguistic perspective. Colloquial language refers to informal expressions commonly used in everyday spoken communication, including contractions, shortened pronunciations, and conversational expressions. The purpose of this study is to identify the types of colloquial language found in the album and to analyze their social functions in conveying meaning and emotion. This study employed a qualitative descriptive method using a sociolinguistic approach. The data source consisted of song lyrics from Olivia Rodrigo’s SOUR album released in 2021. The data were collected through documentation and note-taking techniques by listening to the songs, reading the lyrics, identifying colloquial expressions, and classifying the data into several categories. The data were analyzed using qualitative content analysis based on sociolinguistic theories proposed by Holmes, Trudgill, and Labov. The findings reveal that the album contains several forms of colloquial language, including contractions, informal expressions, shortened pronunciations, emotional expressions, and conversational ellipsis. The study also shows that colloquial language functions to create natural communication, strengthen emotional expression, establish interpersonal closeness, and represent youth identity in popular culture. Overall, colloquial language in the SOUR album reflects authentic spoken communication and meaningful social interaction.
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