LAS VEGAS, NV – MAY 20: (EXCLUSIVE COVERAGE) (L-R) Singers Usher and Monica attend the 2012 Billboard Music Awards held at the MGM Grand Garden Arena on May 20, 2012 in Las Vegas, Nevada. (Photo by Christopher Polk/Billboards2012/Getty Images for ABC)
Home LAS VEGAS, NV – MAY 20: (EXCLUSIVE COVERAGE) (L-R) Singers Usher and Monica attend the 2012 Billboard Music Awards held at the MGM Grand Garden Arena on May 20, 2012 in Las Vegas, Nevada. <P><P>CREDIT:</BR> Christopher Polk/Billboards2012/Getty Images for ABC</P> LAS VEGAS, NV - MAY 20: (EXCLUSIVE COVERAGE) (L-R) Singers Usher and Monica attend the 2012 Billboard Music Awards held at the MGM Grand Garden Arena on May 20, 2012 in Las Vegas, Nevada. <P><P>CREDIT:</BR> Christopher Polk/Billboards2012/Getty Images for ABC</P>
LAS VEGAS, NV – MAY 20: (EXCLUSIVE COVERAGE) (L-R) Singers Usher and Monica attend the 2012 Billboard Music Awards held at the MGM Grand Garden Arena on May 20, 2012 in Las Vegas, Nevada. CREDIT: Christopher Polk/Billboards2012/Getty Images for ABC
