"1+1" is a song by Australian singer-songwriter Sia, taken from her ninth studio album, Music – Songs from and Inspired by the Motion Picture.
The song was used in musical film Music, co-written and directed by Sia, it was released on YouTube alongside Sia's album on February 12. In the film, it is performed by American actress and singer Kate Hudson.
Three Banx & Ranx remixes of "1+1" were then released; the first, featuring guest vocals from Israeli-French singer-songwriter Amir Haddad, was released on 13 July 2021.Gaëtan, Audeyer (8 July 2021). "La chanteuse Sia va collaborer avec Amir sur le titre 1+1 !" [The singer Sia will collaborate with Amir on the track 1+1!]. Virgin Radio (in French). Archived from the original on 8 July 2021. Retrieved 8 February 2025.Sia (13 July 2021). "1+1 (feat. Amir) [Banx & Ranx Remix] - Single" . Apple Music (US). Retrieved 20 July 2025. This was followed by a solo version on 23 July,Sia (23 July 2021). "1+1 (Banx & Ranx Remix) - Single" . Apple Music (US). Retrieved 8 February 2025. and, on 6 August, a Spanish-language remix featuring Sofía Reyes and Yandel.Sia (6 August 2021). "1+1 (feat. Yandel & Sofía Reyes) [Banx & Ranx Remix] - Single". Apple Music (US). Retrieved 8 February 2025. Amir's remix is included on the deluxe edition of Haddad's fourth studio album, Ressources and on the French edition of Sia's ninth studio album.
Composition "1+1" is a "breezy",Yeung, Neil Z. "Music: Songs From and Inspired by the Motion Picture – Sia". AllMusic. Archived from the original on 2 May 2024. Retrieved 8 February 2025. summery track,Strazzabosco, Domenic (8 February 2021). "Album Review: Sia fails to strike a chord with 'Music'". RIFF Magazine. Archived from the original on 12 February 2021. Retrieved 8 February 2025. built on a dance-pop instrumental.
Personnel Sia Furler – writer, vocals Jesse Shatkin – writer, producer, keyboards, bass, percussion, drums, synthesizer, engineer Sam Dent – producer, engineer
Track listing Digital download and streaming – album track "1+1" – 2:29 Digital download and streaming – (feat. Amir) (Banx & Ranx Remix) "1+1" (feat. Amir) (Banx & Ranx Remix) – 3:17
Digital download and streaming – (Banx & Ranx Remix) "1+1" (Banx & Ranx Remix) – 3:25
Digital download and streaming – (feat. Yandel & Sofía Reyes) (Banx & Ranx Remix) "1+1" (feat. Yandel & Sofía Reyes) (Banx & Ranx Remix) – 3:25
Charts Chart (2021) Peakposition Belgium (Ultratop) 17 New Zealand Hot Singles (RMNZ) 30
References