“We thought it’d be fun to have a dance party with both world and hip hop elements,” she explains. The night begins with a two-hour world music DJ set by former longtime KVMR broadcast host B.D. Colwell returns to spin world music at a free dance party Monday night at the Haven, downtown Nevada City. It’ll show at intermission of the Monday dance party, with an approximate 7:45 p.m. screening. “Yet he’s maintaining and continuing the blues legacy.”Oh, and, yes, he’s the youngest son of Famous Amos chocolate chip cookie founder Wally Amos.