Jaekyung (재경, born Kim Jae-kyung (김재경) on December 24, 1988) is the group's leader, and is a vocalist and dancer.[28] She studied at Dongduk Women's University, where she majored in Fashion Design. She has appeared in two music videos by SS501: "Love Like This" and "A Song Calling For You", and in A'ST1's "Dynamite". She made her acting debut on jTBC's drama Monster.[30] She is also a member of the sub-unit Rainbow Blaxx.