Galantis is a Swedish electronic music act consisting of producer Christian "Bloodshy" Karlsson. Formerly, they were a duo, alongside rising musician Style of Eye, until he decided to part ways with the project shortly after their second album The Aviary in 2017. However, he made appearances in live performances and music videos as part of the project up until 2021.

Galantis had their first international success with "Runaway (U & I)" released in 2014, followed by "Peanut Butter Jelly" and "No Money".

Christian "Bloodshy" Karlsson has worked as part of the production duo Bloodshy & Avant and the Swedish indie pop band Miike Snow. Karlsson has co-written and co-produced tracks for artists such as Katy Perry, Britney Spears, Jennifer Lopez, Kylie Minogue and Madonna. Specifically, Karlsson co-wrote the Britney Spears single "Toxic", which eventually earned an Ivor Novello award (for songwriting and composition) and a Grammy for Best Dance Recording. Karlsson is also a founding member of Swedish artist collective and record label Ingrid.

Linus Eklöw, known by his stage name Style of Eye, co-wrote and produced Icona Pop's song "I Love It" featuring Charli XCX. Eklöw, a Sundsvall-born and Stockholm-based DJ and producer, resides in the techno genre and comes from the underground scene. He explores a range of musical styles, from techno to house via distinct percussion and minimal, floating melodies. After growing up in a jazz and soul oriented family and playing a drumkit at age 10, Eklöw transitioned to electronic music after getting his first computer aged 15 and making "weird downtempo dubbeat and trip hop". DJing upbeat drum and bass followed at 16, and Linus moved into studio production with releases and remixes on such labels as Classic Recordings, Tiny Sticks and Rabid Records.

The duo initially met by chance at Karlsson's Robotberget studios in Stockholm, sometime in 2007. In 2009, Karlsson's band Miike Snow asked Eklöw, who produces and DJs as Style of Eye, to remix their song "Animal". After that, the two started hanging out in the studio together, playing each other songs and scraps of ideas. Explaining what drew him to Eklöw, Karlsson says, "He's an amazing programmer and designer of soundscapes. It was artsy, in a way. He was different."

There were many unfinished ideas that the pair fiddled with and then abandoned, but it wasn't until sometime in 2012 that things really came together, when they stopped the loop-based and software approach common in modern dance music, and switched to Karlsson's usual method of beginning a song on guitar or piano. The duo figured out their own approach—once they create a foundation with a simple arrangement, they build it up with stirring keyboards, monumental drums, imploring vocals and inventive flourishes. "We keep the song naked, and when we feel like we have the right one, we put some clothes on it and see how it feels," says Karlsson. "We realized, this is Galantis, this is our band," Karlsson adds.

The duo signed to Atlantic Records' dance imprint Big Beat Records in mid-2013. Recording in a studio in the Swedish archipelago in the Baltic Sea, the duo began to focus heavily on their artistic direction. They opt to combine the excitement and big energy of electronic music with meaningful songwriting. The first composition they agreed upon was "Smile". After that, their direction became clear. "We felt the urge to fill the dance world up with songs and with songwriting that created our sound," says Eklöw.

Karlsson has said: "We always start with the song. We use guitar, piano, and bass lines we don't keep to figure out which clothes we're going to put on each melody and lyric. I think that's different than a lot of others in the dance scene. They have a beat they love and then force a top line on top of it. I feel like that makes it sound like a remix. I'd rather do it our way, it's more fun too." The first single with Big Beat Records, "Smile", was released that following November. Its controversial video premiered on Stereogum. "Smile" received several remixes from various artists, and an extended mix by dance music heavyweight Kaskade.