Bodyslam was originally called La-On (Lanna: ละอ่อน) which means kids or younger people, inspired by the name of freshman orientations at Suankularb Wittayalai School, the elementary school the band (the initial "La-on")'s members attended. In 1996, the band entered a band competition for high school students called "Hot Wave Music Awards" and won the first prize, beating nearly a hundred of other bands. La-on quickly signed a record deal with record company Music Bugs, and released a self-titled pop-rock album in 1997. "Dai Rue Plao" (ได้หรือเปล่า) became their most recognized song. The band members portrayed roles of themselves in the lakorn (Thai TV series) Thep Niyai Nai Sano (เทพนิยายนายเสนาะ) and later released the series' soundtrack in that same year.
The band returned in 2002 under the new name Bodyslam, shifting to heavier rock music with only three of the original six members remaining. The first self-titled album under their new name as a three-piece band was successful. The second album, Drive, was released in 2003, becoming equally successful as their previous album. They won Channel [V] Thailand Music Video Awards for "Favorite Group" for the music video Plai Thang (ปลายทาง: End of the road).
After the second album, the band went through many changes. They left Music Bugs and later signed a deal with Genie Records, a subsidiary of GMM Grammy, Thailand's largest record company. The band's guitarist Ratthapol "Pao" Pannachet left the band for a solo career (with an album in November 2005). Bodyslam then became a four-piece band. Bodyslam's long-time touring drummer, Chad, was finally announced as an official member and had appeared in music videos, posters, and album covers. The fourth member was Thanachai "Yod" Tantrakul, the new guitarist who was brought in to replace Ratthapol.
On 15 September 2007, Bodyslam released their fourth album Save My life and a major concert in Bangkok followed in early October of that same year.
The success of the new album had brought them a bigger fan base. They became one of the most popular bands in Thailand. Save My Life won Season Awards for "Best Rock Group", "Best Rock Album" and "Best Rock Song" for "Yahpid" (ยาพิษ: Poison) in March 2008.