Stop Everything: Zac Efron Is Strutting Around in Nude Underwear

Zac Efron stepped out on the Georgia set of Dirty Grandpa on Tuesday, and all he was wearing was a pair of nude underwear. We thought we'd reached our peak of Zac perfection when he emerged in a crop top on Monday, but clearly, the undies take the cake. Zac has been getting back to work in the wake of a little downtime with his new, talented girlfriend, Sami Miró. The two kicked off their April with a sweet trip to Mexico, spent time together on the night of the MTV Movie Awards, and made a recent smoothie run in LA. Keep reading to see Zac's latest on-set pictures, and then melt over Zac and Sami's cutest snaps.