Bluegrass & Bourbon Derby Party – May 2 | The Light Horse Alexandria Celebrate Derby Day in Old Town Alexandria with bourbon, live bluegrass, and festive style. VIP bourbon tasting (2–4PM) offers limited tickets and curated pours. From 4–8PM, enjoy live music by the Robert Mabe Trio, bourbon cocktails, and a lively crowd. Derby attire encouraged with prizes for best dressed.