There are multiple artists with the same name:
1) A fictional synth/pop-punk band from Swedish film "G som i Gemenskap"
2) A death metal band from Boise, Idaho.

1) In the Swedish youth film "G som i Gemenskap" from 1983 by Staffan Hildebrandt, Barn (aka Barn i Bredäng) was a fictional synth/pop/punk/rockband. They perform 3 songs in the movie; Barnet i Mig, Tre Vilda Hav and Tre Tusen Meter. The songs were written by the contemporary real life teen star Niels Jensen.
Other artists to appear in the film were Reperbahn (as Nürnberg 47), Nasa, Freestyle and Eva Dahlgren.

2) Barn are a death metal band from Boise, Idaho. The band consists of Reece Howell (vocals), Indy McCarter (bass), Ian Dodd (guitar), London Howell (guitar) and Dante Chandler-Haas (drums). Their debut, self-titled album was released on November 6, 2020. Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.