Frontside is a Polish metalcore / deathcore band from Sosnowiec, Poland, formed by Astek and Demon in 1993.

The band was formed in 1993 in Sosnowiec, Poland by Astek and Demon.

Early Frontside productions were hardcore songs with influence from many other genres, such as hip-hop.

However, these musical experiments ended on Our Is Kingdom... in 2001; they were replaced by riffs akin to thrash and death metal and harsh vocals.

In mid-2003, Auman from the Polish thrash metal band Totem joined as the new vocalist when Astek left, and Daron became the new guitarist after Simon left.