What does it mean when a guy tells you he'll listen to an artist you casually mention?

So there's this guy I am interested with. I try to hang around him lowkey. Whenever I casually mention an artist, he would say that he'll listen to that artist. After that, he told me that he listened to them and would sing songs from that artist randomly whenever were together. Does that even mean a thing?

What does it mean when a guy tells you he'll listen to an artist you casually mention?
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