Zac Efron Wins Best Shirtless Performance, Gets Stripped by Rita Ora

Zac Efron may not have kept his earlier promise to accept his MTV Movie Award sans shirt, but no matter – presenter Rita Ora was quick to assist.

The Neighbors star, 26, had Tweeted, "If I beat Thor [Chris Hemsworth] – I'm accepting the award shirtless on stage" back in March, but when the moment finally came Sunday night, Efron's button-down remained firmly in place.

As the audience heckled him, Ora snuck up behind Efron and did the honors, ripping his shirt down to the navel to reveal that the actor had in fact been working on his fitness.