Subjective and it depends on the genre, I love Sinatras " Thats Life" and Robesons "Land of my fathers" and theres not a Welsh bone in me. Folk its Ray Jackson and Jimmy Alan Hull or Harvey Andrews, but theres The Seekers "Find another you" or one I sung to my kids and grandkids " Morning town express" Then theres R&R Elvis " Mystery Train" , Blues Howlin Wolf " Smokestack Lightning" New Wave / Punk Hugh Cornwell or Hazel O Connor. Singers like Randy Crawford, Gloria Estafan, Joan Armatrading Moving songs from crowds is there a finer sound than the Welsh Rugby crowd , or Hibs singing Sunshine on Leith...... well only maybe the Boro singing E I O.