FEB 19 4:42 PMFeb 19 4:42 pm At Napa Music Festival, Chefs Are in the Lineup By ELAINE GLUSAC Photo Imagine Dragons performed on Feb. 8 in Las Vegas.Credit Ethan Miller/Getty Images Chefs are often called the new rock stars, and now one California music festival plans to give some culinary headliners their own stage. In its third edition, the three-day music, food and wine event BottleRock Napa Valley plans to supplement its four music-focused stages with a fifth devoted to chef and sommelier showcases. Held May 29 to 31 in Napa Valley, BottleRock will feature the bands No Doubt and Imagine Dragons and classic acts like the Preservation Hall Jazz Band. Stands from 20 restaurants and 30 wineries will fuel the party. Organizers say the culinary stage will offer cooking demonstrations as well as events like sommelier-led blind wine tastings for some of the musicians on the program. “We’ve found the chefs themselves tend to like to hang out with artists not just because they play wonderful music but in general because they have an appreciation for food” with their experiences on tours, said Dave Graham, chief executive of the event’s promoter, Latitude 38 Entertainment. Chefs will be announced closer to the event date. Admission to the festival starts at $99 for a one-day pass.