|Stage Name||Birth Name||Position||Birthday||Age||Height||Star Sign||C Y||BT|
|Yeoeun 여은||Jung Jieun||Vocal||28||169 cm or 5'6½"||Aquarius||Snake||O|
|Yoomin 유민||Na Yoomin||Vocal||24||165 cm or 5'5"||Virgo||Rooster|
|Yein 예인||Ahn Yein||Vocal||23||168 cm or 5'6"||Taurus||Pig||A|
|Chahee 차희||Park Sooyoung||Maknae||22||167 cm or 5'5½"||Aries||Rat||A|
Melody Day 멜로디데이 is a girl group formed in 2012 by Viewga Entertainment. The group officially debuted in 2014, and is currently composed of four members: Yeoeun, Chahee, Yein, and Yoomin.
Melody Day started their career as a trio in 2012, featuring on soundtracks for dramas such as "Bridal Mask," "Cheongdam-dong Alice," "Missing You," "My Daughter Seo-young," "The King of Dramas," "I Can Hear Your Voice," "Master’s Sun," and "Pretty Man."
On June 26, 2013, they released the ballad track “Loving Alone” as part of the single album New Wave Studio Rookie, Vol. 1.
Melody Day officially debuted with the single album Another Parting on February 25, 2014. Their title track's music video featured the actors Seo Inguk and Wang Jiwon. The group's debut music show performance was on KBS's "Music Bank" on February 28.
Later that year, Melody Day featured on 2AM’s Changmin's digital single, “The Very Last First,” released May 21, and on CNBLUE's Lee Jonghyun's digital single, “To Tell You the Truth,” released August 14. They also featured on the original soundtrack of the drama "Fated to Love You" with the single “You’re My Everything,” a remake of Jeff Bernat’s “Be the One.”
In October, Melody Day introduced a new member, Yoomin. The group released their first song as a quartet, “Listen to My Heart,” for the drama "Cantabile Tomorrow." On December 12, they released the digital single “Anxious,” featuring Mad Clown.
Melody Day’s second single album #LoveMe was released on June 9, 2015. Four months later, on October 7, they released their third single album, Speed Up, with the music video for the title track starring Got7’s Junior. On December 28, they released the digital single “When It Rains” featuring VIXX's Ravi.
On July 1, 2016, the group released their EP Color.