BXB (비엑스비; short for Boy By Brush) is a five-member boy group under Wolfburn. They debuted on January 30, 2023, with the single album "Intro: Flight and a New Beginning."

Boy By Brush holds the meaning of drawing the youth as they express various chapters of youth with the music of various genres.

Ji Hun, Hyun Woo, Si Woo, and Ha Min are former members of the boy group TRCNG. BXB last appeared on Peak Time as Team 4:00 but did not make it to the finale.

On July 20, 2023, they took to social media to announce their comeback. They began with a concept film, followed by their promotion schedule. The single album is expected to be released on August 3, 2023, at 6 pm kst. Member June will not be part of this comeback due to a hiatus for medical issues.

On July 23 and 24, 2023, they dropped their first set of concept photos showing a colorful side of themselves.