"Lovesick Girls" is a song recorded by South Korean girl group Blackpink, released on October 2, 2020, through YG Entertainment and Interscope Records, as the third single from the group's first Korean-language studio album, The Album (2020). It was written by Teddy, Løren, Danny Chung, and group members Jisoo and Jennie, while Teddy produced the song alongside 24 and R. Tee. "Lovesick Girls" is a dance-pop and electropop song with elements of EDM sound. Lyrically, the song deals with the pain after a heartbreak. "Lovesick Girls" peaked at number two on the Billboard Global 200 and number one on the Global Excl. U.S., becoming Blackpink's first number-one hit on the latter chart. The song peaked at number two and became the longest-charting girl group song in the top ten of 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 figured within the record charts in other 14 countries. The song was later certified Platinum in South Korea and Gold in Japan. An accompanying music video for the song was directed by Seo Hyun-seung and uploaded onto Blackpink's YouTube channel simultaneously with the single's release. It garnered 61.4 million views in its first 24 hours, becoming the sixth biggest 24-hour debut for a music video at the time. The song was performed with "Pretty Savage" on several music programs in South Korea including Show! Music Core and Inkigayo. Background Starting from September 22, the group's label uploaded various teasers for each member on their respective social media accounts. The song's name and release date were announced on September 28, 2020. The accompanying teaser poster features the group members leaning on one another with the song logo at the top alongside an official concept teaser. The song was further revealed to be the "main track" of its parent album. The next day, the official tracklist for the album was released via Twitter. Composition "Lovesick Girls" was written by Løren, Danny Chung, Jisoo, Jennie, and Teddy Park while composition was handled by the latter two with David Guetta, 24, R. Tee, and Leah Haywood. The song has been described as a dance-pop and electropop song with an acoustic guitar and EDM sound. In terms of musical notation, the song is composed in the key of G-flat major, with a tempo of 128 beats per minute,