Hardcore Superstar is a Swedish rock band from Gothenburg, formed in 1997. They have released eleven studio albums. History. The first ten years (1997–2007) 1997–2004. Hardcore Superstar was formed in Gothenburg, Sweden in 1997 by Joakim Berggren and Martin Sandvik. Their previous band Link had been grunge-inspired but with their new band they wanted to pull more towards rock 'n' roll. https://en.wikipedia.org/wiki/Hardcore_Superstar