Among idols who did solo, seven of them had really unique concepts. They could showcase their skills and charms through nice solo concepts.

Idols did solo because they wanted to show more of their versatility as singers. Also, they had what it took to go solo like great vocal and dance skill. Among the idols who did solo, Taeyang stole the attention for his unique concept, AllKpop reported.

Taeyang has a sexy voice, great body, handsome face, and a great song to make him famous. His song "Eyes, Nose, Lips" got an all-kill after its release in 2014, OneHallyu reported.

Next, there was Girl's Day's Minah with her "I Am A Woman, Too." She could show her mature side in this song and her voice was really nice. After that, there was Amber from f(x) showing her nice skill in composing a song. She asked many of her friends to participate in the MV for "Shake that Brass" and the song was well-received.

Next idol who had nice concept was HyunA. She could be the icon of sex appeal with her sexy voice and beautiful body and face. She stood out the most in 4Minute and she did really well in her solo with the song "Roll Deep." Next, there was Jo Kwon who showed his beautiful voice in a ballad song "Crosswalk." Even though he showed a hilarious side of him on a variety show, he could be a mature Jo Kwon for his solo concept.

Next, there was Miss A's Fei. Fei did sexy concept really well in her solo track "Fantasy." Fans were surprised by her transformation and it was a huge success, especially in the Chinese market. And in the last place, there was Block B's Zico. Zico with his song "I Am You, You Are Me" showed his charisma and nice rapping. He did really well in his solo with his flexible style.

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