LOS ANGELES, CALIFORNIA, UNITED STATES (UNRESTRICTED POOL / REUTERS) – The pop world’s reigning divas dueled on the Grammys red carpet on Sunday (February 12), raising eyebrows with cleavage-baring looks, and politically charged fashion statements found a voice on the music industry’s big night. Fresh off her Super Bowl performance and due to sing with Metallica, Lady Gaga showed up just minutes before the awards show in a barely-there black vinyl bolero jacket, short shorts embossed with chains and thigh-high boots. A platinum blonde Katy Perry wore a Tom Ford ensemble with champagne gold sequin on top and purple feathers below. The Grammys is where pop stars push the envelope on fashion beyond the more classic dress-up looks worn by their film colleagues two weeks later at the Academy Awards, whether barely covered flesh or head-scratching spectacle – such as Gaga’s arrival at the 2011 Grammys in a translucent egg. Carrie Underwood, nominated for the country song “Church Bells,” wore a Nashville-worthy red sparkling number with a cut-out cleavage. Similarly, and true to J-Lo form, Jennifer Lopez wore a cleavage-revealing lavender gown – what she called an “orchid confection” – with a dramatic bow at the neck.