Related Information for Insyderz The Insyderz are a Christian ska-core band from Detroit, Michigan. They are one of the last existent bands of this type, filling a void in the mid to late 1990s along with The O.C. Supertones and Five Iron Frenzy.The Insyderz began as a project of Joe Yerke and Nate Sjogren, who led worship at their church at the time. The band found their break at the 1996 Cornerstone Festival. They began playing on their campsite, and wound up garnering the attention of Michael Sean Black and Gen.. read more