"Lovesick Girls" is a song by South Korean girl group Blackpink, recorded for their debut studio album, The Album (2020). It was released on October 2, 2020, through YG Entertainment and Interscope Records, as the third single from the album. The Japanese version of the single was released through Interscope Records and Universal Music Japan on June 4, 2021. The song was composed by Teddy, 24, Jennie, Brian Lee, Leah Haywood, R.Tee, and David Guetta, whilst its lyrics were written by Teddy, Løren, Jisoo, Jennie, and Danny Chung. It is a dance-pop and electropop song containing influences from EDM and punk rock, with lyrics exploring pain associated with heartbreak.
"Lovesick Girls" received acclaim from music critics for its production and musical styles. Commercially, the song peaked at number two on the Billboard Global 200 and number one on the Global Excl. U.S., becoming Blackpink's first number-one on the latter chart. The song peaked at number two on the Gaon Digital Chart in South Korea, and topped charts in Malaysia and Singapore. It also peaked at number 59 on the US Billboard Hot 100, and appeared on the record charts in other 14 countries. The song received platinum certifications in streaming in South Korea and Japan and gold certifications in Australia and New Zealand.
An accompanying music video, directed by Seo Hyun-seung, features the group cycling through romantic scenarios and relationship arguments. It became the sixth biggest 24-hour debut for a music video on the platform at the time with 61.4 million views. To promote "Lovesick Girls" in South Korea, Blackpink performed the song on the music programs Show! Music Core and Inkigayo. Internationally, the group appeared and performed it on programs such as Good Morning America and Jimmy Kimmel Live! in the United States in 2020 and Music Station in Japan in 2021. "Lovesick Girls" was included in the set list for the group's Born Pink World Tour (2022–2023), in addition to their headlining sets at the Coachella festival in California and BST Hyde Park festival in London.
