Singer and former French First Lady Carla Bruni gets stage fright in an unusual place — her leg — rather than the customary butterflies. “I have it so much,” she confided in fellow model Helena Christensen for Web site DuJour. “Sometimes it comes into my leg, and there’s no way to hold it still. I would use it and say to crowds, ‘My leg and I are so happy to see you.’ Now I stand.” Bruni, who released her new album “Little French Songs” this year, also posed for a Christensen photo shoot.