

Lee Siyeon (이시연) or better known by her stage name Siyeon (시연) is the fourth and final member of the South Korean girl band QWER. She serves as the main vocalist and occasionally a guitarist.
Lee Siyeon (이시연) or better known by her stage name Siyeon (시연) is the fourth and final member of the South Korean girl band QWER. She serves as the main vocalist and occasionally a guitarist.