Jay-z's Biography.

Birth name:
Shawn Corey Carter.
Also known as:
S. Carter, S Dot, Jigga, Jiggaman, Jay, Jay-Hova, Hova, Young Hova, Young, Young Vito, Hov, Hovito, Iceberg Slim, Lucky Lefty, El Presidente.
Born:
December 4, 1969 (age 36).
Origin:
Brooklyn, New York,United States.
Genre(s):
East Coast hip hop.
Occupation(s):
Rapper, songwriter, record producer, record executive.
Years active:
1992-Present.
Label(s):
Roc-A-Fella/Priority (1996-97)Roc-A-Fella/Def Jam (1997-99)Roc-A-Fella/Island Def Jam (1999-present.
American rapper and jay-z and current president and CEO of Def Jam and Roc-A-Fella Records. He has been one of the most successful American rappers of the past decade. In 2006, an MTV list named him the "Greatest MC Of All Time.
Known for his use of freestyling abilities, flow, and blending of street and popular hip hop, Jay-Z became one of the most respected rappers in the music industry before his declared retirement in 2004. He is admired for his ability to craft lyrics from memory, without the use of pen and paper(he claims his critically acclaimed album The Blueprint was written in only two days).He also returned from retirement in October 2006; his new album Kingdom Come will be released November 21st.
Along with Damon "Dame" Dash and Kareem "Biggs" Burke, Jay-Z was one of the founders of Roc-A-Fella Records, a hip-hop record label which also launched the careers of artists such as Beanie Sigel, Kanye West, Memphis Bleek, Young Gunz, Freeway, and Teairra Marí.

Puff diddy's Biography.

Birth name:
Sean John Combs.
Also known as:
Diddy, Puff Daddy, P. Diddy, Sean John, Puff, Puffy.
Born:
November 4, 1969 (age 37).
Origin:
New York City, New YorkUnited States.
Genre(s):
Hip hop.
Occupation(s):
Rapper, record producer, actor, CEO, record executive, fashion designer.
Years active:
1991–present.
Label(s):
Uptown Records Arista Records Universal Records Atlantic Records Bad Boy Entertainment.
Website:
Diddy
Biography
Born in Harlem to Melvin and Janice Combs, Combs grew up in the suburb of Mount Vernon. When P. Diddy was two, his father Melvin, a Muslim, was shot dead in his car on January 26, 1972 at age thirty-three in Manhattan park following a party he attended. Melvin was rumoured to be a drug dealer.
After completing his private secondary education at the Roman Catholic Mount Saint Michael Academy in the Bronx, Combs attended Howard University in Washington, DC before becoming an intern at Uptown Records..
With the help of Russell Simmons, he tried to sign Tupac Shakur who he thought was the best rapper at the time to jump start the label. However, Tupac refused. Both Mack and Biggie quickly released hit singles, followed by similarly successful LPs, particularly B.I.G.'s Ready to Die. Puff Daddy, as he was then known, began signing more acts to Bad Boy, including Faith Evans, 112 and Total, as well as producing for Lil' Kim, TLC, Mariah Carey, Boyz II Men, SWV, Aretha Franklin and others. Mase and The Lox soon joined Bad Boy, just as a widely publicized rivalry with the West Coast's Death Row Records was beginning. Combs and Notorious B.I.G. were criticized and parodied by Tupac Shakur and Suge Knight, in songs and interviews during the mid 1990s. Shakur was murdered in 1996. Six months later, on March 9th 1997, the Notorious B.I.G. was murdered weeks before the release of his successful album, Life After Death.
Puff diddy in i need a girl

source:wikipedia