While opener Lady Gaga opted for a futuristically sexy clear plastic bra, headliners the Pussycat Dolls made plaid hot in concert at the National Indoor Arena in Birmingham, UK. All the usual PCD costume elements were in play: short skirts, leather, lace, lingerie, fishnets, glitter, knee-high boots and hair extensions. Do the Pussycat Dolls look sexy or not? Leave a comment below!