"Lovely" is a song by American singers Billie Eilish and Khalid. Darkroom and Interscope Records released it as the lead single from the Netflix drama series 13 Reasons Why's second season soundtrack. The artists wrote the song with Eilish's brother and producer Finneas O'Connell. The song has been described as a chamber pop ballad whose lyrics recount Eilish and Khalid trying to overcome serious depression together. The song also appears on the deluxe version of Eilish's EP don't smile at me.

Billie Eilish Pirate Baird O'Connell is an American singer and songwriter. She first gained public attention in 2015 with her debut single "Ocean Eyes", written and produced by her brother Finneas O'Connell, with whom she collaborates on music and live shows. In 2017, she released her debut extended play (EP), Don't Smile at Me. Commercially successful, it reached the top 15 of record charts in numerous countries, including the US, UK, Canada, and Australia.