Rihanna - performing during her Loud Tour in Sao Paulo

Robyn Rihanna Fenty (born February 20, 1988), better known as simply Rihanna (pronounced /riˈɑːnə/ ree-ah-nə or /riˈænə/ ree-an-ə), is a Barbadian R&B recording artist. Born in Saint Michael, Barbados, Rihanna moved to the United States at the age of 16 to pursue a recording career under the guidance of record producer Evan Rogers. She subsequently signed a contract with Def Jam Recordings after auditioning for then-label head Jay-Z.

On February 8, 2009, Rihanna's scheduled performance at the 2009 Grammy Awards was cancelled. Reports later surfaced regarding an alleged altercation with then-boyfriend, singer Chris Brown, who was arrested on suspicion of making criminal threats. On March 5, 2009, Brown was charged with assault and making criminal threats. Due to a leaked photograph from the Los Angeles Police Department obtained by TMZ.com—which revealed Rihanna had sustained visible injuries—an organization known as STOParazzi has proposed a law called "Rihanna's Law," which, if enacted, would "deter employees of law enforcement agencies from releasing photos or information that exploits crime victims." Gil Kaufman of VH1 reported "the nonstop coverage of the Rihanna/Brown case has brought up a number of issues regarding the privacy of alleged victims of domestic violence, including the decision by almost all major news outlets to divulge the identity of the victim—which is not typically done in domestic-violence cases" and the controversial distribution of the leaked photograph. Rihanna was subpoenaed to testify during a preliminary hearing in L.A. on June 22, 2009. "The DA told me Rihanna will be subpoenaed. I will accept on her behalf," Rihanna's attorney, Donald Etra told Us Weekly. On June 22, 2009, Brown pled guilty to the felony assault. In exchange for his plea Brown received five years probation and was ordered to stay fifty yards away from Rihanna, unless at public events, which then will be reduced to ten yards.

Rihanna made an appearance as the central character in Kanye West's music video "Paranoid". She also collaborated with Jay-Z and West on "Run This Town" which peaked at number two on Billboard Hot 100 as well as reaching the top ten in ten other countries. The song won the Grammy Award for Best Rap Song and Best Rap/Sung Collaboration, bringing her total to three Grammys. Her fourth studio album, Rated R, was released in November 2009. Rolling Stone was favorable of the album commenting that "Rihanna has transformed her sound and made one of the best pop records of the year". The album debuted at number four on the Billboard 200 and has been certified platinum by the Recording Industry Association of America (RIAA) for shipment of one million copies. Its first three singles: "Russian Roulette", "Hard" and "Rude Boy" peaked within the top ten on the Billboard Hot 100 with "Rude Boy" reaching number-one. The song also topped the charts in Australia, while reaching number two in the United Kingdom, the Republic of Ireland, New Zealand and Switzerland. Two other singles were released from Rated R, which included "Rockstar 101" and the final single from the album, "Te Amo". To further promote the album, she embarked on her worldwide tour, the Last Girl on Earth Tour.

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Rihanna - performing during her Loud Tour in Sao Paulo