"Rare" was developed in a writing session with producer Sir Nolan and songwriters Madison Love and Brett McLaughlin. The song was initially written for Gomez, however she declined, and the song was recorded by other artists. In 2018, Selena wanted the song for the album and received it through her label's A&R. According to Nolan, Gomez added melodies and ad-libs to make it fit her perspective. Producer Simon Says co-produced "Rare" with Nolan stating: "Simon and I went through her vocal takes a million times, comped them, Melodyned them, and went over the timing a trillion times. When it's an artist this big, you don't want to take any risks."[3]
The song was revealed in an Instagram Live by Gomez on August 15, 2018. Later that day, co-writer McLaughlin confirmed his involvement in the song.[4] Gomez teased the song's lyrics in an interview with Elle in September 2018.[5] The song was then teased in the Rare album trailer.[6][7]
On February 28, 2020, the Alexander 23 Edit of "Rare" was released for digital download and streaming.
Musically, "Rare" is three minutes and forty seconds long and has been described as a pop[8] and electropop[9] song. In terms of music notation, "Rare" was composed using 4 4 common time in the key of C Mixolydian with a tempo of 115 beats per minute,[10] following a chord progression of C–B♭. Gomez's vocal range spans from the low note of C4 to the high note of A5, giving the song one octave and five notes of range.[10] Gomez spoke to Billboard about "Rare":[11]
I have always loved that song, and I always wanted it to be the title of the record. And I felt like it was a great complement to where I left off with my other singles, because it is honest and raw, and basically saying, "I know I don't have it all, I’m not perfect, but I know that I deserve great, and I deserve love, and I deserve all of it, self-love." It's just one of those things where it's a confidence thing, but without being cocky.
"Rare" debuted and peaked at number thirty on the US Billboard Hot 100 following the release of the parent album and its accompanying music video. It later peaked at number 17 on the Mainstream Top 40 chart following its release as a radio single.
The song also peaked within the top 40 on charts in Canada, Australia, Ireland, New Zealand, the United Kingdom, and Scotland.
The BRTHR-directed music video, released on January 10, 2020, accompanied the song and album's release.[12] It features Gomez wandering in an ethereal world, laying on a spinning bed in a discotheque inspired room, and swimming in a pool. It was stated by Gomez that the music video was inspired by her philanthropic trip to Kenya months prior to the album release.
The dress Gomez wore in the video was designed by AADNEVIK.[13]
On February 24, 2020, Gomez performed the song for the first time at the Village Studio. This live version was released for digital download and streaming on March 6, 2020.[14]
^"ČNS IFPI" (in Czech). Hitparáda – Radio Top 100 Oficiální. IFPI Czech Republic. Note: Select 11. týden 2020 in the date selector. Retrieved March 17, 2020.
^"ČNS IFPI" (in Czech). Hitparáda – Digital Top 100 Oficiální. IFPI Czech Republic. Note: Select 03. týden 2020 in the date selector. Retrieved January 21, 2020.
^"ČNS IFPI" (in Slovak). Hitparáda – Singles Digital Top 100 Oficiálna. IFPI Czech Republic. Note: Select 03. týden 2020 in the date selector. Retrieved January 21, 2020.