Loso are a Thai rock band fronted by singer-guitarist-composer Seksan Sukpimai. The band was formed in 1994 in Bangkok, Thailand. Its name is derived from a play on hi-so, Thai slang for socialites and the upper class, and is meant to reflect the group's humble origins. They are one of the first Thai bands to achieve minimal recognition beyond Thailand, having played festivals, including South By Southwest and Glastonbury. Loso disbanded in 2003, and afterwards, Seksan continued as Sek Loso up until November 2021 when they reformed.
In the mid-1990s, Loso established itself as part of the Thai rock scene. Shortly after signing to Asanee Chotikul's More Music label, distributed by GMM Grammy, they released their first album, Lo-Society, in 1996. They developed an original sound of fusing guitar-driven indie music, a style previously explored with rock band Carabao, with traditional Thai melodies and rhythms. Loso achieved unexpected mainstream success in Thailand with their second album Entertainment, described as being a "record for the Thai industry", having sold over two million copies.