"Fifty-Five" is a song by Kacey Musgraves from her album titled "Star-Crossed," released in 2021. The song reflects on the passage of time and the bittersweet nature of memories, capturing the essence of nostalgia and longing. Musgraves' lyrical style combines personal storytelling with relatable themes, making it resonate with listeners. Musgraves is known for her unique blend of country and pop music, often addressing themes of love, heartbreak, and self-discovery. "Fifty-Five" showcases her signature sound, featuring melodic instrumentation and heartfelt vocals that enhance the emotional depth of the song.