When did Marilyn Monroe start making music?

Marilyn Monroe's first song “How Wrong Can I Be” released on January 1, 1950.

What type of music did Marilyn Monroe listen to? - Quora

Happy Birthday: how popular song became public property, Music industry

Marilyn Monroe: Fascinating Facts About the Real Woman Behind the Legend

The World of Marilyn Monroe - Heat Wave by Marilyn Monroe Music Hall CD w insert

Marilyn Monroe: 7 Essential Performances

116 Marilyn Monroe Singing Stock Photos, High-Res Pictures, and Images - Getty Images

Marilyn Monroe: Remembering Her Career on Anniversary of Death

Marilyn Monroe in Mexico: When the Hollywood star ate, drank and fell in love, Culture

Marilyn Monroe - Wikipedia

Hal Schaefer, Jazz Pianist and Marilyn Monroe's Vocal Coach, Dies - The New York Times

Marilyn Monroe - Wikipedia