Oshima Brothers is an American folk-pop duo known for each playing multiple instruments and looping their own samples on stage to create a complex soundscape as if they were more than two.

They share responsibilities based on natural proclivities, with Sean in charge of external communications and songwriting, and Jamie focusing on mixing and production.

[5] That year, their song "Ellie" was featured on the NPR Music Heavy Rotation ten-song playlist[4] and "These Cold Nights" reached one million streams on Spotify.

[9] The brothers focused on recording new songs, producing music videos,[2] and releasing their second EP, Sunset Red, in late summer 2020.

[1] They promoted the release on a tour through the Midwest, Florida, and East Coast, which included live performances for Acoustic Café and Mountain Stage.

[12] By April 25, the duo had over 115,000 Spotify followers and their song "Cadence" from Dark Nights Golden Days had been streamed more than 330,000 times.

[14] In October 2022, the duo released a forty-eight-minute visual album to accompany Dark Nights Golden Days and promoted it with a series of film showings.

[15] The film focuses on the members' lives as musicians and brothers and features Maine's natural landscape and digital 3D environments.

[16] In January 2023, they performed at the Ann Arbor Folk Fest in Michigan alongside Ani DiFranco, Patty Griffin, Gina Chavez, and St. Paul and The Broken Bones.

[17] The following month they were recruited to perform alongside Jeff Tweedy, Andrew Bird, Trampled by Turtles, Nitty Gritty Dirt Band, Patty Griffin, Neko Case, and Shovels & Rope on the 15th Cayamo cruise.

[20] Born three years apart,[21] Sean and Jamie Oshima are brothers of Japanese-Italian ancestry[19] who grew up in the rural community of Whitefield, Maine.

[12] Their American folk musician parents made thirty different instruments available to them in the home as children[22] and brought them to gigs at weddings, farmers markets, and contra dances.

[25] The brothers learned to sing harmonies with their mother while driving to school as young children and also sang Beatles songs with both parents at the dinner table.

[26] Jamie's first concert as a solo performer was for a crowd of about two hundred at a church in Midcoast Maine, at which he played a fingerstyle guitar piece by Tommy Emmanuel.

[3] By 2021 they had moved to the state's largest city of Portland,[47] which Rolling Stone magazine had recently described as being home to one of the country's eight best music scenes.