IA is a Vocaloid character and a virtual singer who is part of the larger Hatsune Miku franchise. She debuted in 2012 and quickly gained popularity due to her unique voice and design. IA is known for her ethereal and soft vocal tone, which makes her suitable for a wide range of musical genres, from pop to ballads. Although she is not a character with a storyline, she plays the role of a digital performer, allowing users to create and produce their own music using her voice.