“Birds of a Feather” is a song by American singer-songwriter Billie Eilish. It impacted US contemporary hit radio on July 2, 2024, as the second single from her third studio album, Hit Me Hard and Soft, through Darkroom and Interscope Records. The song explores themes of deep love and a desire for lasting connection. The song was a success, peaking at number two on the Billboard Hot 100. Outside of the United States, the song peaked within the top ten and at number one on several charts.
Eilish first previewed the song on May 13, 2024, through a teaser trailer for the upcoming third season of the Netflix series Heartstopper. The song was one of the three songs teased ahead of the album release. In an interview with Apple Music, Eilish revealed that the song contains the highest belt of her career.
The song served as the second single from Hit Me Hard and Soft, released on May 17, 2024.
Described as a “breezy neo-new-wave jam”, “Birds of a Feather” borrows its title from the English idiom “birds of a feather flock together”. In an “emotionally vulnerable” tone, Eilish sings about falling in love with a person that she wants to “stick together” with. The love for her significant other brings her to tears and she begs her lover to stay and never end their relationship.