Blackapella, in some (Shawn-centric) cases known as Quarterblack, is Gus's old a cappella group that he formed with friends while in college. They split up due to irreconcilable differences, but managed a reunion of sorts in S4E7 "High Top Fade-Out" to solve the murder of one of the former band members, Leonard "Diddle" Callahan. Shawn later suggests that they change their name to "Quarterblack", saying that the math made perfect sense, but if it were to make sense, then they would have been called either "Quarterwhite" or "Three-quarterblack", neither of which roll of the tongue very well.
Members[]
Past members[]
- Leonard "Diddle" Callahan (deceased)
- Joon