Aside from Jiyeon's birthday, it's also D-Day for the 2014 Dream Concert!

T-ara performed 'Number Nine', while Jiyeon also performed '1Min 1Sec'.  You can see their hot photos from their performances below.

Other artists who were also present were Girls' Generation, EXO, B2ST, KARA, 4minute, B1A4, VIXX, A Pink, Girl's Day, U-KISS, BTOB, Rainbow, Block B, Crayon Pop, Boys Republic, Dal Shabet, Topp Dogg, F.CUZ, SPEED, GOT7, and Tiny-G.