On April 18th, Sports Seoul went behind the scenes of A Pink's rehearsal studio as the girls prepare for their impending debut just days away. Standing before a full wall of mirrors, the girls could be seen practicing the same move over and over, trying out different concepts like 'cute' and 'powerful'. Drenched in sweat, reporters noted that their movements were very mechanic, like wind up dolls in a sense. Unfortunately, the girls have no option but to work without rest, as they were just two days away from the release of their debut track, "I Don't Know". "I Don't Know" is a feminine and sweet dance track that brings out the youthfulness of their members. Although it may seem just innocent upon first glance, their dance incorporates some powerful moves that require perfect synchronization by the members. When Jung Eun Ji (18) makes a mistake, the room erupts in laughter. The oldest, Park Chorong (20), helps out by advising, "You have to pick up your arms with a bit more power." The girls revealed that the mirror that stood before them was both a positive present and a negative poison. It's only the mirror that will catch the mistakes in their choreography or point out an uneven line-up. Unfortunately, the mirror also disappears when they have to stand on stage, making the girls realize that they can't just depend on the mirror alone. During their break period, none of the members could be seen resting. Kim Nam Ju (16) stands before a mirror and practices her smiling and other facial expressions while the other members head to their vocal training room for further practice. Jung Eun Ji and Yoon Bomi (18) both play the role of mentor and student with each other by teaching skills in which the other lacks. As the team's main vocal, Jung Eun Ji calmly shares her skills with Yoon Bomi, the team's lead dancer. In turn, Eun Ji tells Bomi that she "can't bend her back as well because it hasn't been that long since she's begun her dance training." Bomi returns the favor of Eun Ji's training by helping her out with her dance. The members revealed, "We rehearse our choreography over 100 times a day. It's really hard to dance while singing live, especially since we have to wear high heels on stage. In order to prepare for our debut, we've been rehearsing with our high heels on and repeating our choreography." The seven members also all boast individual charms and stories. Leader Park Chorong was born and raised in Chungwon and has beautiful features, much liker her 'sparkling' name. Son Na Eun (17) studied and dreamed of becoming an artist for the past 13 years and holds a youthful charm that makes her look as if she's just popped out of a comic book. She's also noted for being the leading female in B2ST's music videos like "Soom" and "Beautiful". Maknae Oh Ha Young (15) is currently in her third year of junior high, but unlike her young age, she has a mature vibe. "Nobody believes that I'm the team's maknae," she shyly states. "But there are people that remember me more easily because of my mature looks." Jung Eun Ji is nicknamed the 'second Lizzy', as she's from Busan and speaks in their distinctive dialect. Full of aegyo and friendliness, she carries a charm much like that of After School's Lizzy, making her a shoe-in for future variety shows. Hong Yoo Kyung (17) claims herself to be a fan of BoA. She first followed her friend to a dance academy and began learning how to dance before she got chosen to become a singer. Thanks to her doll-like looks, she isn't an unfamiliar face to viewers, as she was a CF model for Korea's LG Electronics when she was seven. Yoon Bomi is a third level Tae Kwon Do athlete that once dreamed of representing her country. After discovering her hidden talents in dance during elementary school, however, she switched dreams to becoming a singer. The girls' debut track, "I Don't Know", was composed by Super Changddai of 2PM's "I Hate You" fame. The members said, "Lately, girl groups have been coming out with repetitive hooks and powerful dance songs. In contrast to that, we're aiming to use our innocent, clean image, much like the groups of the 90s like S.E.S. and Fin.K.L." When asked if that was their weapon to surviving the girl group rush, Park Chorong replied, "We didn't intend to go that route, but seeing as how each of our members held that same innocent image, we decided that it'd be best to play it up." Source: Sports Seoul via Nate