milet has revealed the MV for her new song "Hey Song" on YouTube. 

"Hey Song" is a happy song that was digitally released on August 23 and will be included in the singer's full album "5am," which will drop on August 30. Due to COVID-19, milet was hardly able to hear the audience's voice during her concerts. She wanted to "sing with everyone someday," so the song includes a part where you can hear the fans' voices. The audio was taken from her fan club concert in June. 

The video was filmed in Shanghai, China. You can see milet challenging herself to Tai Chi, walking around the city, and tasting local cuisine.