- Dec 2 Yvonne Catterfeld, German pop and soul singer, and actress, born in Erfurt, East Germany
- Dec 3 Daniel Bedingfield, British-New Zealand pop singer-songwriter ("Gotta Get Thru This"), born in Auckland, New Zealand
- Dec 7 Sara Bareilles, American pop singer ("Love Song"; "Brave"), born in Eureka, California
- Dec 8 Ingrid Michaelson, American folk-pop singer-songwriter (Lights Out), born in New York City
- Dec 9 Olivia Lufkin, Japanese-American pop singer and songwriter, born in Naha, Japan
- Dec 14 Sophie Monk, Australian actress, singer, and model, born in London
- Dec 16 Mihai Trăistariu, Romanian singer-songwriter ("Tornerò"), born in Constanța, Romania
- Dec 17 Ryan Key, American musician and songwriter (Yellowcard), born in Jacksonville, Florida
- Dec 19 Kevin Devine, American singer-songwriter (Brother's Blood), born in Brooklyn, New York
- Dec 21 Tuva Novotny, Swedish actress, singer, and television director, born in Stockholm, Sweden
- Dec 26 Chris Daughtry, American rock singer, born in Roanoke Rapids, North Carolina
- Dec 26 Mzbel [Nana Akua Amoah], Ghanaian singer (16 Years; Saucy Girl), born in Accra, Ghana
- Dec 27 Walker Hayes, American country-pop singer-songwriter ("Fancy Like"), born in Mobile, Alabama
- Dec 28 Senna Guemmour, German singer-songwriter (Monrose), born in Frankfurt, Germany
- Dec 31 Bob Bryar, American drummer (My Chemical Romance, Gerardolopoly), born in Downers Grove, Illinois
About December 1979
How Old? 44 years old
Generation: Generation X
Leap Year: No
Chinese Zodiac: Goat/Sheep
Star Signs: Sagittarius (Nov 22 - Dec 21), Capricorn (Dec 22 - Jan 19)
Country Singers
Jazz Singers
Opera Singers
Pop Singers
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Rock Singers