Zac Efron is 'putting in the work' in new shirtless Instagram post

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Zac Efron knows he has to hustle for that muscle.

On Instagram, Efron shared several workout pictures which show the 33-year-old actor doing crushes at the gym. His second photo shows him shirtless, and fans can definitely see that his abs are shredded.

“Putting in the work, on the road. @bombas,” Efron captioned the photo.

Efron is currently working on the second season of his Netflix docuseries “Down to Earth with Zac Efron” and has given fans a glimpse of some of the area’s adorable creatures besides himself.

Last week, the former “High School Musical” star flaunted shirtless muscular torso while swimming with dolphins in a video posted to Instagram.

In the clip, the “Baywatch” star went past a school of dolphins wearing fins and goggles while “Devil Eyes” by Hippie Sabotage plays in the background. The actor captioned the video: “Up close and personal.”

During the Netflix show’s first season, Efron and wellness expert Darin Olien traveled to France, Puerto Rico, Costa Rica, Iceland, and Peru to investigate how the different areas are working with nature to create a more sustainable environment. With the ongoing coronavirus pandemic still affecting global travel, the second season will focus on Australia.

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Featured Image Photo Credit: (Getty Images)