H-Logic

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H-Logic is the fourth studio album by South Korean singer Lee Hyori, released on April 12, 2010. It has 14 tracks and features collaborations with Daesung (Big Bang), Jiyoon (4Minute), Bekah (After School), Gary (Leessang), and Sangchu (Mighty Mouth). The project was produced with E-Tribe, the team behind “U-Go-Girl.” In 2010, the album sold 31,756 copies and ranked as the 46th best-selling Korean album of the year.

Two singles were released: “Swing” on April 1, 2010, and “Chitty Chitty Bang Bang” on April 8, 2010. The “Swing” music video features Gary, and the “Chitty Chitty Bang Bang” video was released on April 7, 2011. “Chitty Chitty Bang Bang” was nominated for Best Dance Performance – Solo at the 2010 Mnet Asian Music Awards but did not win, losing to Rain’s “Love Song.”

There was controversy over seven Bahnus-produced tracks allegedly plagiarized, which led Lee Hyori to take a hiatus until 2013. She later returned to the scene with new music during the H-Logic era.