SINGERS WITH MOST GLOBAL IMPACT ON WORLD MUSIC AND FANS AROUND THE GLOBE IN THE 20th & 21st CENTURIES
Reproduced from the book "Best Musicians, Singers, Albums and Entertainment Personalities of the 19th, 20th and 21st Centuries", Volume V of World Who's Who in Jazz, Cabaret, Music and Entertainment.
Global impact means major impact on the music/entertainment industry, peers and fans on an international scale. It translates into lasting effect, a name recognition in at least 50 countries, career longevity, a singing style that ushered in a new genre, a new form of entertainment, a new trend, and singing/musical pioneering attribute.
From L to R: 1-Elvis Presley (USA), 2-The Beatles (UK), 3-Frank
Sinatra (USA), 4-ABBA (Sweden), 5-Tom Jones (UK) 
From L to R: 1-Edith Piaf (France), 2-Jacques Brel (France), 3-Ella
Fitzgerald (USA), 4-Louis Armstrong (USA), 5-Om Kalsoum (Egypt),
6-Maurice Chevalier .
From
L to R: 1-Bing Crosby (USA), 2-Tony Bennett (USA), 3-Michael Jackson
(USA), 4-Otis Redding (USA), 5-Madonna (USA), 6-Charles Aznavour
(France).
From L to R: 1-Johnny Cash (USA), 2-Tolling Stones (UK), 3-James Brown
(USA), 4-Luciano Pavarotti (Italy), 5-Maria Callas (Greece), 6-Carlos
Gardel, the king of the Tango Argentino (Argentina)
From L to R: 1-Doris Day (USA), 2-Petula Clark (UK), 3-Ray Charles
(USA), 4-Paul Anka (USA), 5-Peggy Lee (USA), 6-Sarita Montiel (Spain)
.
From L to R: 1-Marlene Dietrich (Germany), 2-Charles Trenet (France),
3-Mel Torme (USA), 4-Perry Como (USA),
5-Nina Simone (USA), 6-Jose
Carreras (Spain), 7-Chuck Berry (USA).