Remember when Miley Cyrus said at the MTV Video Music Awards that her twerking days were over?

Yeah, that didn't last long.

Cyrus resumed her Bangerz Tour in San Juan, Puerto Rico Thursday night, Sept. 11, and some fan footage from that night has emerged which shows that not only did she go back to her twerking ways, she stepped it up a notch by wearing a giant prosthetic posterior!

For track '23,' Cyrus stepped out with her dancers with foam butts and twerked their hearts out on stage.

The 'Wrecking Ball' singer shared on Instagram earlier this month a photo of herself wearing her new prop in rehearsals for the new leg of the Bangerz Tour.

Earlier in August, Cyrus and Nicki Minaj humorously tried to outwit one another in a battle of the butts. With the release of the 'Anaconda' video, Cyrus seemingly took a step back and said that she was retiring from twerking.

But with her recent stage antics, it looks like Cyrus isn't willing to concede just yet!

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