FNC just uploaded another video of one of the CNBLUE members for the group's approaching comeback, namely Jonghyun. 

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The omnipresent sparkling heel makes its appearance yet again, and Jonghyun, much like the members before him, quizzically studies the shoe. The mystery behind who the owner of the shoe is and why she left it at CNBLUE's home may only be solved once the full MV is released on the fourteenth.