As we previously reported, MAMAMOO’s Whee In, celebrated her birthday recently in the most special way – a fan meet and a new single titled, “D-DAY” for all of those who love and support her. While it was only the audio that was released, Whee In has surprised her fans once again by unveiling the music video for the track! The visual starts off with the singer walking around town listening to the track, as it quickly jumps into clips of her performing it on stage in front of all of her fans. The bright and catchy song is the perfect way to show how much Whee In loves her supporters! Check out the special clip of “D-DAY” down below!