After School's Lizzy revealed her 'ulzzang junior' today through a picture from her graduation, and the young beauty has drawn in a strong level of interest. Son Na Eun was revealed to be a 17-year-old trainee under Cube Entertainment's sub-label, A Cube Entertainment. She featured in B2ST's "Beautiful" and "Soom" music videos, and now she's undergoing preparations for her singing debut. A Cube's upcoming girl group, 'A Pink', is currently finalizing their debut preparations, and according to representatives, the members not only have beautiful looks, but they possess impressive dancing and singing talents to boot. A Pink will be debuting as a seven member girl group around March or April this year. Source: Newsen via Nate