SBS "K-Pop Star"'s first winner Park Ji Min showed fantastic teamwork with JYP.

Park Ji Min, who joined JYP Entertainment after winning the audition program, formed group 15& with Baek Ye Rin and landed herself on the top tiers of music charts with new track "Can't Hide It".

Although 15& had previously fallen behind in music chart rankings, "Can't Hide It', released on April 13, has earned them a spot on the top of music charts.

"Can't Hide It" is a song written by JYP -- the first JYP song that 15& used as their title song. Although JYP Entertainment's policy does not require their artists' title tracks to be a JYP song, 15&'s new title song was one written by JYP.

15& expanded their soulful voice techniques in their collaboration with JYP. Although the lyrics contain a teenage one-sided love, the two girls' groovy voice was well-received.

JYP Entertainment's staff stated: "We think this song is doing well because the public has expected Park Ji Min to step up to a soulful maturity, and she has met that".

In 2012, Park Ji Min became the first winner of the South Korean reality TV competition, K-pop Star. After winning, she was awarded with the opportunity of signing with YG Entertainment, SM Entertainment, or JYP Entertainment. On May 21, it was reported by SBS that she had chosen to sign with JYP Entertainment. 

In September of 2012, Ji Min announced that she will debut as part of a duo along with Baek Ye Rin. The group "15&" debuted its first single, "I Dream," on Inkigayo, and its music video on YouTube.

Baek Ye Rin appeared in 2007 in SBS variety TV show, "Star King," and performed "Listen" by Beyonce. After her appearance, she decided to audition for JYP Entertainment. She spent five years training in South Korea and the United States, and was called a "genius girl" for her vocal talent, skills in using the piano and fluency in the English language.