2013 SBS Gayo Awards posted the first round of line ups on its official website on December 20. The list includes top singers such as Lee Seung Chul, Park Jin Young, Lee Hyori, Dynamic Duo, Baechigi, Brown Eyed Girls, Big Bang’s G-Dragon and Taeyang, K. Will, Kara, Girls’ Generation (SNSD), SHINee, 2PM, 2NE1, f(x), 4Minute, B2st, Rainbow, CN Blue, ZE:A,…