Sven Ratzke; Photo by Hanneke Wetzer Dutch-German performer Sven Ratzke is the best kind of David Bowie fan. When he sings his Ziggy Stardust songs, he closes his eyes, softens his face and tries to interpret the artist, not just mimic him. Ratzke's committed enough to don the skintight catsuit with the plunging v-neck and high-heeled black boots (costume design by Thierry Mugler and Armin van Zutphen). Fans of Bowie…
