Dwayne Johnson shares 'Baywatch' first on-set photo

Dwayne "The Rock" Johnson took to Instagram to share the first picture from "Baywatch" filming set.
The 43-year-old semi-retired professional WWE wrestler was joined by fellow co-star Zac Efron.
In the picture, the two hunks showed off their ripped bodies in matching red-and-blue swimming attires. The Rock sported a long-sleeved swimming top with zip down paired with matching trunks.
He completed his look with yellow aviator sunglasses. Efron, meanwhile, wore a short-sleeved blue swimming suit, showing off his ripped arms.
"EXCLUSIVE FIRST LOOK: #BAYWATCH Day 1. My character 'Mitch Buchannon' just gave @zacefron's character 'Matt Brody' the all important beach speech about what it means to have manly 'Alpha balls'.

"Zac's ad-libbed responses were brilliant! Talented and great dude. World get ready to have some fun, 'cause the beach will never be the same again. #OnSet #BAYWATCH #Day1 #AlphaBalls #NowWhoNeedsMouthToMouth?," Johnson wrote.
Earlier in the day, The Rock shared a photo of a table read for "Baywatch". All cast members smiled widely while reading the script.