Behavi0r began as a music project in 1999 by Caleb McCall and Wesley Young in Denver, Colorado. By 2000 Behavi0r was in Vancleave, Mississippi and joined by Unsupervised_E4. Then in June 2003 Behavi0r was back in Denver, Colorado. Jonathan Agent had joined and Caleb McCall and Unsupervised_E4 had stepped away for other projects. From this point everyone but Wesleyoung stepping in and out at random of where life took them. As of Late 2024 Wesleyoung, Unsupervised_E4, and Jonathan Agent are active members and the studio is shared between Vancleave, MS and Denver, CO.