Report: Britney Spears Will Perform at the Billboard Awards

Singer Britney Spears appears onstage at KIIS FM's Wango Tango at the 
Staples Center on May 14, 2011 in Los Angeles,  California. (Getty Images)

  Britney Spears and Nicki Minaj will kick off their summer tour on June 17, and it looks like they'll give a sneak peek of    what's to come on Sunday at the Billboard Awards!

Sources have confirmed to Us magazine that Brit will take the stage not once, but twice at the industry awards show. First, she'll sing "S&M" with Rihanna as part of the opening number, then later in the show she'll allegedly sing with Nicki on a "Till The World Ends" remix!                  

The source claims Brit's performances will steal the show Sunday. "It's gonna be big," the insider said. "People will definitely be talking about it the next day."

People will also be talking if this is just one big rumor...

Tune in for the Billboard Music Awards Sunday night at 8:00 p.m. on AB