An energy dome is a hat often worn by American new wave band Devo as part of the members' stage outfits. The dome was first worn during the band's Freedom of Choice campaign of 1980. It reappeared in the 1982, 1988, and 1990 tours, as well as most performances since 1997. The domes were custom made for the band from vacuum formed plastic, in a distinctive round, ziggurat shape, and are occasionally—and incorrectly—referred to as "power domes" or "flowerpots". The shape is also reminiscent of the Waldviertel Pyramid. When asked about the story behind the hats, lead vocalist Mark Mothersbaugh recounted:We designed them, Jerry [Casale] and I. We were influenced both by German Bauhaus movement and geometric fashion, and Aztec temples. We just liked the look. It looked good, and it didn't look like any other bands out there. We weren't interested in wearing groovy hats or groovy clothing. We kind of looked like Lego toys or something by the time we got those on our heads, and that was a positive thing.