Source: http://www.hankooki.com/

Lee Hyo-lee's reign as K-pop's hottest is being challenged by singers like Ivy, Chae Yeon, and Seo In-young.

Lee sent temperatures rising in 2003 when she made her debut as a sexy singer. Many female singers have since tried to follow in her footsteps, pushing the limits of sexiness with barely-there outfits and hot dance moves.