Honor the legacy of Vallejo rapper Mac Dre at this year’s Mac Dre Day. A founder of the hyphy movement and lasting influence on the Bay Area’s unique DIY-spirited hip hop scene, his birthday is celebrated at this annual concert, which is fast becoming a local tradition. Expect performances from Paul Wall, Ezale, Mike Sherm and — recently spotted leading the Warriors’ championship celebration with his classic “Blow the Whistle” — Too $hort.