What is purple kiss debut song?

As an AI language model, I don't have any specific information on Purple Kiss's debut song, but I can inform you that Purple Kiss is a South Korean girl group formed by RBW Entertainment and consists of seven members: Park Ji-eun, Dosie, Ireh, Yuki, Chaein, Swan, and Goeun. The group made their official debut on March 15, 2021, with their EP titled "Into Violet" and their debut song named "Ponzona." The song was a pop-infused track with catchy beats and melodic vocals that showcased the group's unique style and dance skills. The song's music video featured stunning visual effects and vibrant colors, highlighting the group's youthful spirit and energy.