If you have existing music on YouTube Music, you can head to your YouTube Music artist profile to retrieve your Artist URL. YouTube Music is located at https://music.youtube.com/.
Once there, you can search for your artist name in the search bar at the top of the page.
To find and copy your YouTube Music Artist URL, go to your artist page, click the three dots next to your name, select "Share," and then click "Copy" in the dialog box that appears.
Your URL should look something like this: https://music.youtube.com/channel/EXAMPLEURL
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