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okay, second chance, but again Paul McCartney does not fit very well. I\ll try to fit it in though.
Three of those artists are with the Slavic/Jewish-Ukrainian roots. Except Paul, but Paul supports Ukraine very much, plays a lot of concerts there, so he also is strongly connected with the region :)

 3 months ago 

👎 I'm always amazed by some of the connections that appear in the answers. Is this really true?

alexanderkass has answered correctly now - they all made guest appearances on The Simpsons.