Aphex Twin famously hid his face in the spectrogram of a song: https://www.vice.com/en/article/nzm7mz/aphex-twin-easter-egg https://www.vice.com/en/article/nzm

Aphex Twin famously hid his face in the spectrogram of a song: https://www.vice.com/en/article/nzm7mz/aphex-twin-easter-egg https://www.vice.com/en/article/nzm7mz/aphex-twin-easter-egg