As a guest performer at the dub step star's show, the 20-year-old 'Hannah Montana' actress sang and strutted alongside the dancer who was wearing just a thong and pasties.
Sporting her now-familiar blonde, punk pixie 'do, the "Can't Be Tamed" singer wore a tiny top with strategically placed cutout revealing her cleavage, a gold body chain, tight leather pants and knee-high leopard-print boots.
At another point in the performance, Cyrus appeared to nearly make out -- or at least get very up-close-and-personal with -- a male performer onstage. Cyrus has collaborated with Israeli-born Borgore on his new single "Decisions" and appeared in the video with a porn star, Jessie Andrews. As for her own ever-evolving sound, Cyrus' fourth studio album is out in 2013, and features collaborations with hip-hop mega-producer Pharrell Williams, rapper Mac Miller and others.