BottleRock kicks off with big crowds in Napa

"I'm pretty impressed," Stacey Carlos said. "I think it's amazing. The weather is beautiful. The decorations are cool."

The three-day festival features 70 musical acts, 30 wineries, and a variety of foods, including the addition of a Williams Sonoma Culinary Stage. KTVU FOX 2's own Mark Ibanez kicked off the opening act at the culinary stage.

"There's a whole bunch of wineries that give you [wine] glasses," Jessica Alcantar said. "I got two glasses of wine and I'm going to sit out and watch some music."

Musical acts started around noon, but getting to BottleRock is causing a bottleneck into Napa. Jay Jamison lives near the festival and said he got caught in traffic last year.

"I have no idea what to expect, so I stayed home today," Jamison said.

His landlord is offering up parking spots for $100 each since parking in most residential areas is off limits. Organizers have dedicated parking for drivers in a lot less than a half mile from the festival on Soscol Avenue.

"This year they're trying something different with traffic management and cars. We'll see," Jamison added.

Many said after the past two years, the festival is starting to find it's groove. Latitude 38, the company that produces BottleRock Napa Valley, took over the event last year.

Headliners at the festival include indie rockers Imagine Dragons Friday night, Led Zeppelin singer Robert Plant on Saturday and ska-punk favorites No Doubt closing the show Sunday.