Wonder Girls - Wikipedia, the free encyclopedia
1 History 1.1 Pre-debut 1.2 2007: Debut and The Wonder Years 1.3 2008: "So Hot: 3rd Project" and The Wonder Years: Trilogy 1.4 2009–10: focus on international activities and line-up changes 1.5 2011: Return to Korea with Wonder World 1.6 2012: Further ......