Katy Perry knows how to do Halloween.If her full-body Flamin' Hot Cheetos numberlast year didn't impress you, then prepare to be won over by the costume she pulled out this Halloween.Forgoing her signature sexy look, Perry chose to dress as an oversized microphone with a balance problem. Drop the mic, get it'The pop star gave us a peek of her look in actionand shared a video with the caption, "Au revoir girl ." Note the amazing soundtrack choice: "Drop It Like It's Hot" by Snoop Dogg. Au revoir girl A video posted by KATY PERRY (@katyperry) on Oct 31, 2015 at 9:13pm PDT The "Prism" singer is known for her quick costume changes and fantastical wardrobe, so of course she turned out more than one look over Halloweekend. She also shared a photo of a very different costume -- a sad girl -- the night before."Shoutout last night's sad girls club by @manthony783," she wrote on the Instagram post. Shoutout last night's sad girls club by @manthony783 A photo posted by KATY PERRY (@katyperry) on Oct 31, 2015 at 3:23pm PDT The pop star has had a busy couple of weeks, somehow managing to perform at a Hillary Clinton campaign rally in Iowa between costume fittings and finishing her world tour.Perry, who took over the presidential hopeful's account for a day, shared this image on Clinton's birthday dressed, of course, in her red, white and blue. A photo posted by KATY PERRY (@katyperry) on Oct 26, 2015 at 5:44pm PDT In the lengthy caption, Perry expressed her support for Clinton and encouraged her nearly 31 million followers to get involved with the campaign."I stand with her for my daughters and their daughters, and beyond what time gives me," she wrote. "Get informed, get involved and become empowered! Strong women help create strong families!" Also on HuffPost: -- This feed and its contents are the property of The Huffington Post, and use is subject to our terms. It may be used for personal consumption, but may not be distributed on a website. Click here to read full news..