"Love Hangover" is a song by JENNIE, a member of the South Korean girl group BLACKPINK, and American singer-songwriter Dominic Fike. The track was released as part of the official soundtrack for the HBO series The Idol, which premiered in 2023. The show, created by Sam Levinson, Abel "The Weeknd" Tesfaye, and Reza Fahim, features music as a central element, and "Love Hangover" is one of the standout tracks from the series.

The song blends JENNIE's smooth, sultry vocals with Dominic Fike's laid-back, indie-pop style, creating a dreamy and atmospheric vibe. Lyrically, it explores themes of longing, emotional intoxication, and the lingering effects of love, fitting well with the show's themes of fame, desire, and excess.

JENNIE's involvement in The Idol marked her acting debut, as she played the role of Dyanne, a backup dancer and aspiring pop star. Her participation in the soundtrack further showcased her versatility as an artist beyond her work with BLACKPINK.

"Love Hangover" received attention for its unique collaboration and its contribution to the overall mood of The Idol. Fans of both JENNIE and Dominic Fike appreciated the fusion of their distinct musical styles, making it a memorable addition to the soundtrack.