Born in Jeollabuk Province in South Korea, Jung Whee-in would find her calling as part of Mamamoo, a K-pop four-piece formed by RBW in 2014. A gifted and wide-ranging vocalist, Whee In proved an invaluable part of the group's success throughout the 2010s: she helped Mamamoo earn multiple number one-charting mini-albums (Yellow Flower, White Wind), alongside number two and number one chart positions for the group's full-length Korean LPs Melting and Reality in Black. As a soloist, Whee In moved into the 2020s with the mini-albums Redd and WHEE, alongside the number three-charting single "Good Bye."