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The artist "Beyonce Knowles" does not seem to be connected to "Beyonce" and "Beyonce Gisselle Knowles".
I recently input a duet with Luther Vandross where she was actually credited as "Beyonce Knowles", which is unlike the usual credit simply for Beyonce. But when I do a 'related artist' to "Beyonce Knowles" it takes me to a separate page than her artist page. I think it is mostly writing credits.