Korea Gallup ran their annual opinion polls for 2012. A few of the categories for their survey included topics on K-pop and which stars were the biggest and brightest this year. They polled 4,157 people in the age range from 13 to 59 and each person was asked to choose up to 3 artists in each category. Check out the results below. The Brightest Singing Stars of 2012 1. Psy - 24.4% 2. Girls' Generation - 19.8% 3. Big Bang - 9.5% 4.