Covers:

1947:

Jan Mazurus

1947:

Bobby Capo

1947:

Desi Arnaz [de eerste als Perhaps Perhaps Perhaps; Engelse vertaling: Joe Daris]

1949:

Stargazers [idem]

1949:

Skymasters [idem]

1949:

Tino Rossi [als Qui sait, qui sait, qui sait; later ook in film Le Huitième jour]

1949:

Luis Mariano [idem]

1951:

Bing Crosby [als Perhaps, Perhaps, Perhaps]

1958:

Nat King Cole [in het Spaans]

1959:

Henry Mancini

1960:

Jørgen Ingmann [eerste als rockinstrumental]

1963:

Cliff Richard

1963:

ZZ & De Maskers

1964:

Doris Day [achteraf ook in film Strictly Ballroom]

1964:

Trini Lopez

1989:

Connie Francis

1989:

Julio Iglesias

1993:

Celia Cruz

1993:

Koen Crucke

1997:

Cake [als Perhaps, Perhaps, Perhaps]

1998:

Cuarteto Patria & Manu Dibango

1999:

Baz Luhrmann [als Perhaps Perhaps Perhaps]

2000:

Omara Portuondo

2000:

Laura Fygi

2001:

Lila Downs

2006:

Emma Bunton

2006:

Mari Wilson [als Perhaps Perhaps Perhaps; begintune BBC-sitcom Coupling]

2007:

Ibrahim Ferrer [postuum in duet met Omara Portuondo]

2013:

Andrea Bocelli [feat. Jennifer Lopez]

2013:

Pink Martini

2013:

Natalie Cole

2017:

Gregory Porter