It is quite common for someone else's music to end up on your Spotify Artist Profile, especially if the artist name is common. Luckily, the process to remove the unwanted music from your profile is quite straightforward. Unfortunately however, MusicHub cannot do this for you.
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First, you will need to have already claimed your Spotify for Artist profile. If you haven't done this, check out this article for instructions on how to do this.
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If you have already claimed your artist profile, go to https://artists.spotify.com/c/content-mismatch and click "Another artist's music is on my profile". All you need to do is copy the links to the releases that should be removed from your profile and enter them into the corresponding field.