Calvin Krime was a hardcore band in Minneapolis, Minnesota during the late 1990s. The trio formed in 1995 when Sean Tillmann, Jon Kelson, and Jason Ralph met at Perpich Center for Arts Education while in their teens. Signed to Amphetamine Reptile, their primary audience was in the punk and noise scene dominant in South Minneapolis at the time. Usually, Calvin Krime was booked in smaller venues and often at house parties. During their three-and-a-half years together, they released two albums (Dress for the Future & You're Feeling So Attractive) and an EP (3x3x3 1/2). The group disbanded in 1998. Afterwards, all the members went on to other bands, including Sean Tillmann, who went on first to Sean Na Na and then to his persona as Har Mar Superstar.