The Simple Life duo get an audience with the jolly fella in West Hollywood. Plus: The Billboard Awards, Beyoncé and more

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QUEEN OF THE HILL

Gwen Stefani gets some help from her Harajuku girls and one little lamb on stage at Monday's Billboard Music Awards held at the MGM Grand in Las Vegas. The singer performed her new Sound of Music-inspired single "Wind It Up."

Check out the stars (Mary J! Nelly Furtado!) as they stopped by PEOPLE's Photo Booth backstage at the Billboards.