Vanessa Hudgens and boyfriend Austin Butler appeared to be having "the time of [their] lives" at a music festival last weekend.

The couple attended Outside Lands, a music, food and art festival set up like a wonderland in San Francisco's Golden Gate Park.

According to an onlooker, the young lovers had a blast relaxing and enjoying the music together.

"Vanessa was on her cell phone, while Austin laid down next to her, seeming super relaxed," the observer told People. "She seemed to be having the time of her life. You could tell that she's really into music and felt good having her boyfriend by her side."

Vanessa and Austin have been joined at the hip since they started dating last autumn.

The pair are frequently seen out and about looking loved up and last weekend was no different.

According to the witness, the High School Musical star took pictures and flirted with her Australian beau between songs.

"She would make cute little faces at him, and he would just stare at her, looking totally in love," the onlooker said.