Released on the 2006 album Black Cherry, "Puppy" is a signature track by Japanese idol Koda Kumi that exemplifies her signature blend of pop and electronic dance music. The song features Koda's distinctive vocal style, characterized by its melodic phrasing and emotional delivery, which became a hallmark of her discography during the mid-2000s. As a key track on Black Cherry, it contributed to the album's success and reinforced her status as a leading figure in the J-pop scene. The recording captures the energetic yet polished sound typical of her work from that era, showcasing her ability to balance commercial appeal with personal artistic expression. "Puppy" remains a representative example of Koda Kumi's catalog, reflecting the vibrant pop culture of Japan in the 2000s.