The amazing Groundation.
California-based reggae band blending roots reggae with jazz, funk, and dub.
Check their tour dates here: https://www.groundation.com/tour-dates
Here is their amazing frontman, Harrison Stafford, performing on Wednesday, 17 July in Groningen:
Harrison is the frontman, founder, and lead vocalist of Groundation. He is also widely known by his nickname "Professor" and has taught The History of Reggae Music at Sonoma State University.