1. The 29-year-old lapping up attention at the 2014 MTV Movie Awards.

2. The actor in serious Baywatch training.

A post shared by Zac Efron (@zacefron) on Mar 8, 2016 at 8:10am PST

3. You can’t pretend to be shy now, Zac! We’ve all seen your abs before.

A post shared by Zac Efron (@zacefron) on Jun 29, 2016 at 10:04pm PDT

4. Going head-to head with The Rock.

A post shared by Zac Efron (@zacefron) on Mar 6, 2016 at 11:24am PST

5. So this is what they mean when they talk about washboard abs.

A post shared by Zac Efron (@zacefron) on Mar 5, 2016 at 9:44pm PST

6. He even works shirtless, go figure!

A post shared by Zac Efron (@zacefron) on Jun 11, 2014 at 10:16pm PDT

7. Catching up with fans in Miami… you’ve guessed it, shirtless.

A post shared by Zac Efron (@zacefron) on Aug 15, 2015 at 4:31pm PDT

8. This has to be the very definition of packing light – travelling without your shirt.

A post shared by Zac Efron (@zacefron) on Mar 16, 2016 at 2:45pm PDT

9. Seth Rogen clearly caught onto Zac’s shirt-evasion thing on the Neighbors 2 set.

A post shared by Zac Efron (@zacefron) on Nov 26, 2013 at 4:26pm PST

10. Zac was clearly born to fit into a Baywatch reboot!

A post shared by Zac Efron (@zacefron) on Nov 1, 2016 at 12:30pm PDT

11. A boys holiday with Mike and Dave Need Wedding Dates co-star, Adam DeVine.

A post shared by Zac Efron (@zacefron) on Jun 13, 2015 at 9:47pm PDT

12. Back in 2014 his shirtless antics were fully appreciated, as he won the Best Shirtless Performance award at the MTV Movie Awards.

13. Seriously, his life looks like a perma-spring break!

A post shared by Zac Efron (@zacefron) on Mar 15, 2016 at 8:31pm PDT

14. Zac doesn’t even need a shirt for live television appearances, like this one on Jimmy Kimmel Live. 

A post shared by Zac Efron (@zacefron) on Jan 21, 2016 at 4:41pm PST

15. Naturally he and The Rock are shirtless in the Baywatch poster!

A post shared by Zac Efron (@zacefron) on Dec 20, 2016 at 1:26pm PST

16. Proving that he can outmuscle The Rock on set. Swoon central!

A post shared by Zac Efron (@zacefron) on Mar 15, 2016 at 8:48am PDT