Ben Bernanke, the 56-year-old chairman of the Federal Reserve, has been crowned Time‘s Person of Year. Runners-ups include General Stanley McChrystal, the Chinese worker, Speaker of the House Nancy Pelosi, and Jamaican sprinter Usain Bolt, the world’s fastest man. Among the People Who Mattered: Jon and Kate Gosselin, Adam Lambert, Jay Leno and David Letterman, Twilight‘s Robert Pattinson and Kristen Stewart, Taylor Swift, The Twitter guys (Biz Stone and Evan Williams), and Tiger Woods.