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Vanessa Hudgens Dances to Electronic Music as Austin Butler Watches Adoringly | Vanessa Hudgens

Vanessa Hudgens Dances to Electronic Music as Austin Butler Watches Adoringly

Originally posted 08/15/2012 06:00AM

It was a music-filled weekend in the forest for Vanessa Hudgens and boyfriend Austin Butler.

The couple braved the freezing cold weather in San Francisco's Golden Gate Park, where they attended Outside Lands, a music, food, wine, beer and art festival, set up like a wonderland in the wilderness.

Sitting on a blue tarp early Friday evening, Hudgens and Butler chilled out right before watching a set by Canadian electronica duo, MSTRKRFT.

"Vanessa was on her cell phone, while Austin laid down next to her, seeming super relaxed," an onlooker tells PEOPLE.

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