The 64-year-old Waters, the third headliner of the three-day music festival following Prince and Jack Johnson, performed an elaborate, almost retrospective concert Sunday featuring music from throughout Pink Floyd's catalog.

Old photographs of the band often flashed across the screen behind Waters and his current band, which played songs from "The Wall," "Wish You Were Here" and "Animals," among other Floyd albums. They also played "Dark Side" in its entirety, culminating with the album's iconic triangle prism rising above the stage.

But Waters' biggest prop was an inflatable pig the size of a school bus that emerged while he played a version of "Pigs" from 1977's capitalism critique, "Animals."

The underside of the pig simply read "Obama" with a checked ballot box alongside.