Even if you never caught 2017's star-packed Baywatch reboot, there's no doubt you saw at least one of the trailers, photos, or GIFs of the cast in supertoned, superbuff lifeguard shape. Zac Efron's abs basically have their own cult following at this point, judging by the popularity of his "Gym Time" YouTube series, where he's worked out with celebs like Nina Dobrev and taken on a Victoria's Secret Angel workout. In the newest installment, he's heading back to his ripped, tanned Baywatch beach days with costar Alexandra Daddario for an abdominal workout that'll make your midsection scream.
Zac and Alexandra hit LA's Vitru gym with trainer Johnny Fontana and jumped right in with dead bug ab exercises, hollow hold variations, medicine ball Russian twists, and medicine ball crunches. Then it was on to some crazy V-up variations that look like they'd land me flat on my face before finishing up with few full-body reps on the SkiErg. Along the way, we even learn a little more about their Baywatch fitness regimen: 4 a.m. workouts, no carbs (like, at all?!), and how the intense schedule jump-started Alexandra's interest in health and fitness.
Keep reading to check out the full video and how-tos on a few of their key moves.