Gorme died after a brief illness.
Lawrence was at her bedside, along with their son, when she died on Saturday afternoon, her publicist Howard Bragman said.
Gorme, who was born to Spanish-speaking Jewish parents in New York in 1928, grew up speaking both English and Spanish.
She met Lawrence in 1953 on the set of a New York local TV programme hosted by Steve Allen which became the Tonight Show the next year. The couple married in 1957.
Gorme's biggest solo hit was Blame It On The Bossa Nova. She also scored another success on her own in 1964 with the Spanish-language song, Amor, recorded with the Mexican band Trio Los Panchos.
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