Psycho Synner, who were previously known as Psychosexual before recently rebranding, is an American metal band formed in 2020. The original lyrics were heavily sex-oriented, hence the name Psychosexual, but they later changed everything up and are now known as Psycho Synner. The band was formed by Jeremy Spencer, the former drummer for Five Finger Death Punch, and goes by Grym Synner. Spencer was talking to news outlets such as Metalsucks back in 2021 saying he was going to change the name to Psycho Slayyr, which would make him Grym Slayyr. Later in 2021, he said that he was going to change the name to Cyco Sleepyr, and change his name to Dyyp Sleepyr.