Have you noticed when an artist uses a sample from another song? For example, I’m a huge fan of the German digital hardcore band Atari Teenage Riot, and the first time I listened to Ayu’s “Sparkle”, I instantly recognized
a sample of one of their songs.
WhoSampled also says Disco-munication has a sample of “Need You Tonight” by INXS, and there’s also many people who have sampled Ayu in their songs:
https://www.whosampled.com/Ayumi-Hamasaki/
Have you recognized another sample being used in one of her songs?