Kim Jae-kyung

While under DSP Media, in 2007 she was asked if she wanted to debut as a member of Kara. Jaekyung turned the offer down because she thought she would be happy with her Rainbow members.[3] In 2007 Jaekyung was asked to join SM Entertainment, hinting at the possibility that she may have joined Girls' Generation.[3] In 2008, she appeared in SS501's song "A Song Calling For You" music video before debuting as a Rainbow member.

Jae-kyung debuted as leader of girl group Rainbow. On November 12, 2009, Rainbow's released mini album "Gossip Girl". The group's first broadcast performance of "Gossip Girls" was held at MBC's music show Show! Music Core on November 14, 2009 .

Jaekyung, Woori, Seungah, and Hyunyoung debuted as Rainbow Blaxx, the second official sub-unit of Rainbow, was formed in 2014. The group released their first mini-album titled RB Blaxx on January 20, 2014.

In the year 2010, she became a cast member in the variety television show Honey Jar.[4] In the same year, she also became a cast member in the school variety show 100 Points Out of 100. On March 31, 2012, her major leading role, she portrayed Na Yoo-mi in the JTBC's drama Monster.[5] In the year 2012, she became a cast member in the variety television show Law of the Jungle W.[6][7] In December 2013, she was confirmed for tvN's new reality program, The Genius: Rule Breaker, with 12 other representative figures from different fields of work such as TV personalities, politicians, gamblers, and more. She was the second person eliminated.[8]

She was then cast in a supporting role in the 2014 drama Inspiring Generation. In 2014, she has also been a main in Quiz of God 4.[9] On January 12, 2014, she was a guest on Running Man. In 2015, she entered the main cast of tvN's Always Cantare 2.[10] In 2016, she became a host on Beauty Bible, alongside Jessica Jung. In December 2016, Kim signed with new management agency Namoo Actors to start afresh as an actress.[11]