Lady Gaga is pulling out all the stops on a promotional visit to Berlin for her latest album "ARTPOP." And by stops, we mean humungous chicken helmets and mustaches. Yesterday, the "Applause" singer greeted fans on the street wearing a large triangular headpiece that, upon close inspection, features some kind of a golden beak between tiny eye-holes. And later, during a visit to Berghain nightclub, Gaga arrived in little more than lingerie and a Dali-esque mustache. (It's a look she's also cultivating on Instagram.) READ: 10 Ways to Turn Your Instagram Photos Into Actual, Tangible Things But that's not all. Just this morning, she strolled Berlin pretty much in the nude, with only a sheer piece of fabric for coverage. The latter pics are a bit too NSFW for us (JustJared has them, if you're curious), but you can scroll down to check out Gaga sporting underwear and facial hair.