KEST GAK is a prolific New York-based graffiti artist and "vandal" known for his extensive presence across the five boroughs, primarily through stickers and tags. He is a prominent member of the GAK (Graffiti Art Kings) crew. The name "KEST" was inherited from his uncle, the original KEST, who used to take him to graffiti spots; as a child, he was known as "Lil KEST" before dropping the "Lil" as he got older. Raised in Sunset Park, Brooklyn, KEST began tagging in elementary school. He is recognized for his "Best Buy" inspired logo stickers and an iconic smiley mascot characterized by a bandana-masked face and gold rope chains.