Rihanna is worried about Chris Brown's presence during Grammy Awards 2015. Reuters

Rihanna is reportedly worried about former boyfriend, Chris Brown's presence during the 57th annual Grammy Awards on 8 February in Los Angeles.

The 26-year-old Barbadian beauty will be joined by Kanye West and Sir Paul McCartney to perform Rihanna's new song, FourFiveSeconds, during the ceremony.

According to a report in Hollywood Life, the We Found Love singer "doesn't want Chris there."

"She has a big performance and she wants it to be her night," a source said.

"She doesn't want it to be dominated by everyone leaving the show talking about Chris and Rihanna in the same building. The Grammys are about the celebration of music and Rihanna has a job to do, she wants it to be drama free so she wants Chris not to be there."

"She will not tell him personally but feelers have been sent out that she doesn't want him there and hopefully he will listen," the insider added.

Meanwhile, Rihanna's fans are waiting to see if she will grace the red carpet with rumoured boyfriend American actor/film producer Leonardo DiCaprio.

It was previously reported that the Diamonds singer and the 40-year-old Wolf Of Wall Street star, have been spending a lot of time together, after his relationship with German model Toni Garrn officially ended.

"After his breakup, Leo started texting Rihanna again. They decided to have some fun," a source told Us Weekly. "Neither one is looking to make this anything more than fun. He's into her, and they're enjoying it."