Britney Spears on Billboard Music Awards

Pop star Britney Spears will appear on the Billboard Music Awards 2011 this Sunday. Sources tell Us Weekly that Spears will open the show with Rihanna, performing Rihanna’s hit song “S&M.”

Also, later in the show, Spears will perform with hip-hop artist Nicki Minaj for the remix of Spears’ hit “Till The World Ends.”

The 2011 Billboard Music Awards air Sunday night at 8:00 p.m. on ABC.