Liv Tyler had a technophobic moment during Stella McCartney’s Spring 2014 presentation when she thought a guest wearing Google Glass was filming her. “Liv practically accosted a woman wearing Google Glass,” said a spy. “She stopped and said, ‘Is that a camera on your glasses? That’s scary. Are you filming right now?’ ” We’re told the woman was able to reassure Tyler she was not being filmed at Jefferson Market Garden on Monday. McCartney’s team also got involved with worldwide head of communications Stephane Jaspar trying on the glasses. Jaspar tells us, “I think it is always better to let someone know first if you are filming if you carry around new technology on your face . . .and yes, that’s why I stepped in. The woman proved friendly and nice . . . it was just a little bit awkward.” The Beluga vodka-sponsored show also brought out Madonna, Anna Wintour, Julianne Moore, Cameron Diaz, Naomi Watts and Amy Poehler.