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