— Dave Matthews lunching with his family (wife, young son, pre-teen twin daughters) Wednesday afternoon at the Pret a Manger near Farragut West. Casually dressed: Beard, rolled-sleeve plaid shirt, jeans. Told a fan that the family came to town to see – do you want to guess or should we just tell you? Okay, they were here to see the Beyonce concert Tuesday night. Yeah, how about that? The singer-songwriter, who got his start in Charlottesville, lives in Seattle these days.