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Vanessa Hudgens, Abs

Vanessa Hudgens, is that you?

High School Musical's sweetheart has gone full Jillian Michaels on us, sporting an amazingly sculpted tummy in new celebrity photos taken at SVEDKA Vodka's Summer Samba Event in Beverly Hills on June 17. Hudgens (seriously) rocked a white Houghton crop top, paired with lime green and pink floral pants and her trademark adorable smile.

The 25-year-old actress, who has usually flaunted a slim figure on the red carpet, had gained 15 pounds for her role as a homeless, pregnant teenager in the movie Gimme Shelter, which was released in October 2013.

Vanessa Hudgens, Abs

According to Hudgens, "abs are made in the kitchen."

"For breakfast I'll have a smoothie with lots of vitamins," she told E! News. "I'll add spirulina [a type of blue-green algae], spinach, almond milk, almond butter, kale … just anything that has a lot of nutrients."

Hudgens also told E! News she's been getting in shape by doing Pilates and yoga and going on hikes.

Vanessa Hudgens

Lek/INFphoto.com

Hudgens will surely turn heads at High School Musical co-star and friend Ashley Tisdale's upcoming wedding to fiancé Christopher French (although, let's keep the eyes mainly on the bride, please)

"Of course I'm going to be a bridesmaid!" Hudgens told E! News.

Tisdale, 28, and French, a musician, got engaged on Aug. 8, 2013. The actress, who is sporting an enormous double halo, cushion-cut diamond engagement ring (see below), and her girlfriends, including Hudgens, celebrated her bachelorette party in May in Miami.

"I think they just inspire each other," Hudgens said, regarding Tisdale and French. "They're just great, I love him for her!"

—Reporting by Andrea Martinez