AOA were guests on the July 26th episode of 'A Song 4 U'. A Chinese fan explained that in China, celebrities stacked coins on their clavicles to show how prominent they were and asked AOA to do the same. Mina was chosen to have the best clavicles, and she managed to stack 70 coins on them! B1A4's Gongchan also attempted the challenge, but Mina called out to him in the middle and he couldn't help but smile, making all the coins fall off.