I know Bethune Cookman and Famu host them for a week during the summer. The HS students that attend BCU's band camp do a parade at Universal Studios at the end of camp to showcase. I believe Famu's students have a parade around campus and does a halftime show at Bragg stadium to showcase what they've learned. In terms of numbers I would say Famu has the most successful one. They have nearly 500 kids attend whereas BCU has capped the number of participants at 250. Oh yeah, both have sectional concerts i.e woodwinds, sousaphones, trumpets, auxiliary, etc.