Celebrity Birthdays: Happy Birthday, Rihanna!

Dr. Dre, Sidney Poitier and Juelz Santana also celebrate.

Toni Morrison - Toni Morrison, winner of a Nobel Prize and Pulitzer Prize and a member of France’s Legion of Honor, received the Presidential Medal of Freedom in 2012. (Photo: Francois Durand/Getty Images)

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Toni Morrison: February 18 - The celebrated author and Nobel Prize winner celebrates her 82nd birthday. (Photo: Francois Durand/Getty Images)

John Travolta: February 18 - The Saturday Night Fever star turns 59. (Photo: John Sciulli/Getty Images for G'Day Australia)

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John Travolta: February 18 - The Saturday Night Fever star turns 59. (Photo: John Sciulli/Getty Images for G'Day Australia)

Dr. Dre vs. Death Row - Dr. Dre's got a message for whoever currently holds Death Row's interests: he's owed approximately $3 million from the now bankrupt label that he helped build to its legendary status in hip hop history. Dre sued The Row for unpaid royalties, digital sales and failure to bump his percentage up two points to 20%, as he was once promised.(Photo: Isaac Brekken/Getty Images for Beats by Dre)

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Dr. Dre: February 18 - The rapper, producer and entrepreneur celebrates his 48th birthday. (Photo: Isaac Brekken/Getty Images for Beats by Dre)

Juelz Santana: February 18 - The Diplomats member, born LaRon Louis James, turns 30 this week. (photo: John Ricard)

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Juelz Santana: February 18 - The Diplomats member, born LaRon Louis James, turns 30 this week. (photo: John Ricard)

Smokey Robinson: February 19 - The legendary R&B singer celebrates his 73rd birthday. (Photo: Steve Mack/Getty Images)

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Smokey Robinson: February 19 - The legendary R&B singer celebrates his 73rd birthday. (Photo: Steve Mack/Getty Images)

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Seal: February 19 - The recently divorced British singer turns 50. (Photo: Ragnar Singsaas/Getty Images)

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Seal: February 19 - The recently divorced British singer turns 50. (Photo: Ragnar Singsaas/Getty Images)

Rihanna: February 20 - The "Birthday Cake" singer turns 25. (Photo: Christopher Polk/Getty Images for NARAS)

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Rihanna: February 20 - The "Birthday Cake" singer turns 25. (Photo: Christopher Polk/Getty Images for NARAS)

Sidney Poitier: February 20 - The groundbreaking actor celebrates his 86th birthday. (Photo: Kevin Winter/Getty Images for NAACP Image Awards)

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Sidney Poitier: February 20 - The groundbreaking actor celebrates his 86th birthday. (Photo: Kevin Winter/Getty Images for NAACP Image Awards)

Photo By Photo: Kevin Winter/Getty Images for NAACP Image Awards

Nancy Wilson: February 20 - The jazz great and sometime-actress celebrates her 75th birthday.  (Photo: Bryan Bedder/Getty Images)

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Nancy Wilson: February 20 - The Grammy-winning jazz singer, who has recorded over 70 albums in her illustrious career, turns 76.  (Photo: Bryan Bedder/Getty Images)

Charles Barkley: February 20 - The NBA legend turned sportscaster rang in his 50th birthday with fellow baller Chris Paul, Flo Rida and dozens of other celebs during All-Star Weekend.  (Photo: Adriana M. Barraza / WENN.com)

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Charles Barkley: February 20 - The NBA legend turned sportscaster rang in his 50th birthday with fellow baller Chris Paul, Flo Rida and dozens of other celebs during All-Star Weekend.  (Photo: Adriana M. Barraza / WENN.com)

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Corbin Bleu: February 21 - The High School Musical star celebrates his 24th birthday. (Photo: Charley Gallay/Getty Images for Grey Goose)

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Corbin Bleu: February 21 - The High School Musical star celebrates his 24th birthday. (Photo: Charley Gallay/Getty Images for Grey Goose)

Photo By Photo: Charley Gallay/Getty Images for Grey Goose

Julius Erving: February 22 - The retired NBA legend turns 63. (Photo: Frazer Harrison/Getty Images)

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Julius Erving: February 22 - The retired NBA legend turns 63. (Photo: Frazer Harrison/Getty Images)

Photo By Photo: Frazer Harrison/Getty Images

Drew Barrymore: February 22 - The newlywed, who gave birth to daughter Olive just months ago, turns 38. (Photo: Ben Gabbe/Getty Images)

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Drew Barrymore: February 22 - The newlywed, who gave birth to daughter Olive just months ago, turns 38. (Photo: Ben Gabbe/Getty Images)

Niecy Nash on being a relationship guru among her friends:  - “My friends call me their relationship nanny so we have a good time working through problems. Now I don’t claim to be an expert, but I am a woman who has been through everything. I’ve been married, divorced; I’ve been the baby momma, the side piece and the secret…”

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Niecy Nash: February 23 - The Reno 911! star turns 43. (Photo: Astrid Stawiarz/Getty Images)

Photo By Photo: Astrid Stawiarz/Getty Images

Edward James Olmos: February 24 - The star of Blade Runner and Dexter turns 66. (Photo: Alberto E. Rodriguez/Getty Images for NCLR)

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Edward James Olmos: February 24 - The star of Blade Runner and Dexter turns 66. (Photo: Alberto E. Rodriguez/Getty Images for NCLR)

Photo By Photo: Alberto E. Rodriguez/Getty Images for NCLR

Floyd Mayweather, Jr.: February 24 - The controversial boxer turns 36. (Photo: Chris McKay/Getty Images for BET)

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Floyd Mayweather, Jr.: February 24 - The controversial boxer turns 36. (Photo: Chris McKay/Getty Images for BET)

Photo By Photo: Chris McKay/Getty Images for BET