Kicking off with a conga line in the streets of San Francisco, the Bay Area National Dance Week explodes onto the city's landscape, packs street corners, and fills performance spaces on both sides of the Bay. The calendar is packed with free performances and workshops representing a variety of dance forms — lindy-hop, capoeira, tap, modern, and so forth. If you've ever imagined your life as a musical, in which passersby break into song and dance, this might be the opportunity to live that fantasy.