"The Other Girl" (stylized in all lowercase) is a song performed by American singer-songwriters Kelsea Ballerini and Halsey. It was released to country radio in the United States on April 20, 2020, as the second single from Ballerini's third studio album Kelsea (2020). Ballerini and Halsey co-wrote the song with Ross Copperman and Shane McAnally. It was released to pop radio formats in June 2020. The track received positive reviews from music critics who praised the lyrical storytelling and both women's performances. In the US, "The Other Girl" peaked at numbers 19 and 52 on the Billboard Hot Country Songs and Country Airplay charts, respectively. It also reached number 95 on the US Billboard Hot 100 songs chart. For promotion, Ballerini and Halsey performed the song live on the American t