Nazesus; จิรังกูล เกตุทอง (Jeerungkool Ketthong) or เอ็ม (M), was born in Nonthaburi, Thailand. Nazesus has always been interested in rap music since he was in middle school, and started his first ever group under the name “Dynasty Dogg” as “Doctor J” around 2000-2001, and made it to be included in Thaitanium’s Mixtape vol.4

After Dynasty Dogg’s disbandment, he changed his name to Nazesus to symbolize his new beginning under the new group, Dogg Tribe, in 2005. He, then, formed a group called The Real in 2012, and it became a huge success, even if it was only for a short period of time. He is also one of the founders of Rap Is Now

After the disbandment of The Real, he decided to be an English teacher at Debsirin Nonthaburi School.

He did tell the story of the journey of his rapper career in the 2018 interview, where he explained the meaning and the reason of the name changing as well.