The film 'Kaunis rietas onnellinen', which narrates the life and career of the artist Kaija Koo, features actress Oona Airola's singing that notably mimics Koo's voice. Music producer Leevi Kohonen clarified that while AI was used in some songs, the film avoided generative AI, which can create videos of deceased artists singing contemporary hits. Instead, the film's sound was grounded in Airola's own vocal performance, ensuring that her interpretation, phrasing, rhythm, and emotional expression remain authentic to her as an artist.

Kohonen emphasized that the process differed significantly from pitch correction technologies like autotune. The AI application in the film was not about altering pitch but about enriching Airola's naturally good vocal performance with Koo's vocal characteristics. This approach allowed for an authentic representation of Koo's style without compromising Airola's unique voice qualities. The mixing ratios varied based on the desired feel, showcasing a sophisticated balance between the two vocal contributions.

The commitment to authenticity in portraying Kaija Koo's artistry highlights a growing trend in the entertainment industry where technology intertwines seamlessly with human talent, raising questions about the future of performance and the ethical implications of using AI in creative fields. The film aims to resonate not just with Koo's fans but also with a broader audience intrigued by the intersection of tradition and innovation in music.