"Piped Up" Music Video
Velazquez grew up in East St. Louis, Illinois. When he was in 5th grade, he was diagnosed with ADHD. Velazquez started sipping lean when he was 15 years old. He dropped of high school, but attended night school and eventually attained his high school degree there. Growing up, Velazquez listened to Odd Future, Chief Keef, Eazy-E, 50 Cent, and more.
Comethazine began pursuing a music career in 2015.
His rapper name alludes to a combination of cocaine and promethazine; Velazquez's nickname growing up was Cocaine because he was light-skinned compared to the rest of his friends.
Early in his career, he released songs that were lyrical, similar to Joey Bada$$' style. After not getting too much attention, he decided to make his music more "ignorant" and started getting noticed. He eventually gained other influences, including Nipsey Hussle and Lil B.
In the fall of 2017, while working as a mechanic, he received a call offering him a trip to New York City. While on the job, he left work and flew out to meet with Alamo Records the next day.
In November 2017, Comethazine signed with Alamo Records, making him.
On January 10, 2019, he released BAW$KEE 2.
While he was in New York, Comethazine ordered cheese fries from a food stand. After telling a friend to record his complaint about melting the cheese better on his fries and post it as an Instagram story, several people perceived it as rude and reported him.
After refreshing his page, he realized that the blue checkmark on his Instagram was removed.