Dylan Mullen (born February 10, 1994), known professionally as Smokeasac, is an Americanrecord producer and songwriter based in Hollywood, Los Angeles. He is best known for frequently collaborating with the late Emo rapper Lil Peep, produced "Benz Truck", Peep's albumsCome Over When You're Soberpart 1 and 2.    
After two years, he quit school and left the academics behind, bound for Los Angeles with his laptop and limited funds to pursue a career in music full time.  Lil Peep was one of the first artists to buy Mullen's original beats online. 
Mullen and Lil Peep would later sign to First Access Entertainment in early 2017. During this time, both musicians wrote and recorded Peep’s first collaborative effort for major release. Six months were spent in studios in Los Angeles and London. 
The first tracks from those recordings were released in August of 2017 as a 7 song EP -Come Over When Your Sober pt 1.