Lars Horntveth, born March 10, 1980, in Tønsberg, Norway, is a Norwegian saxophonist, clarinetist, percussionist, guitarist, bandleader, and composer. In 2003, he and his brother composed a commissioned work for the Vestfold Festival that led to the formation of The National Bank. He won the Edvard Prize in 2005 in the pop music category, along with Martin Horntveth and Martin Hagfors, for the song "Tolerate" from the band's 2004 debut album, The National Bank. Horntveth released his debut solo album, Pooka, in 2004 through Smalltown Supersound, earning a Spellemannprisen in 2004 and an Alarmprisen in 2005. His 2008 solo album, Kaleidoscopic, was recorded with the Latvian National Symphony Orchestra. He has contributed as an arranger and performer for artists including Susanne Sundfør, Ingrid Olava, and Marit Larsen. In 2017, he joined Amund Maarud and Gard Nilssen to form Amgala Temple, releasing the album Invisible Airships in 2018. He subsequently formed Orbits alongside Natalie Sandtorv and Erlend Mokkelbost, winning the NOPA Music Prize in 2024 for the track "Synthetic Sweetness".