B.R. Cohn Winery’s Fall Music Festival, a benefit concert in its 25th year, comes back this weekend boasting some of the most recognizable names in classic rock. Set in B.R. Cohn’s natural backyard amphitheater, day one brings the Doobie Brothers (featured both nights), Sammy Hagar with Joe Satriani, Greg Kihn and Jim Messina. Day two features an equally notable lineup including Lynyrd Skynyrd, Leon Russell and Little Feat. The no-chairs, blankets-only policy leaves plenty of room to walk the grounds and visit the food and wine vendors on Saturday–Sunday, Sept. 25–26, at B.R. Cohn Winery. 15000 Sonoma Hwy., Glen Ellen. Noon–6pm. $100–$350. 707.938.4064.