Rihanna

Feb. 7: Rihanna arrives at the Clive Davis pre-Grammy party in Beverly Hills, Calif. (AP)

Feb. 7: Rihanna arrives at the Clive Davis pre-Grammy party in Beverly Hills, Calif. (AP)

Feb. 7: Rihanna arrives at the Clive Davis pre-Grammy party in Beverly Hills, Calif. (AP)

Feb. 7: Rihanna arrives at the Clive Davis pre-Grammy party in Beverly Hills, Calif. (AP)

Feb. 6: In this image released by Verizon Wireless, Rihanna performs at an event presented by Verizon and BlackBerry Storm kicking off Grammy weekend at Boulevard 3, in the Hollywood section of Los Angeles. (AP)

Dec. 12, 2008: Singer Rihanna poses in the press room at the Z100 Jingle Ball concert at Madison Square Garden in New York. (AP)

Nov. 23, 2008: Rihanna arrives at the American Music Awards in Los Angeles. (AP)

Nov. 19, 2008: Singer Rihanna attends a Gucci UNICEF dinner at The Oak Room at the Plaza. (AP)

Sept. 7, 2008: Singer Rihanna arrives at the 2008 MTV Video Music Awards held at Paramount Pictures Studio Lot. (AP)

June 24, 2008: Rihanna arrives at the BET Awards. (AP)

March 29, 2008: Rihanna arrives at the 21st Annual Kids' Choice Awards in Los Angeles. (AP)

June 26, 2008: Rihanna performs. (AP)

Rihanna holds her award for best R&B act at the MTV Europe Music Awards,Bella Centre, Copenhagen, Denmark, photo (AP)

Rihanna (AP)

Rihanna. (AP)

Rihanna (AP)

Rihanna and Chris Brown, the couple allegedly involved in a Feb. domestic abuse case that has resulted in assault and criminal threat charges against Brown. (AP)

Rihanna and Chris Brown, the couple allegedly involved in a Feb. domestic abuse case that has resulted in assault and criminal threat charges against Brown. (AP)

Rihanna and Chris Brown, the couple allegedly involved in a Feb. domestic abuse case that has resulted in assault and criminal threat charges against Brown. (AP)