"This is not the first time I've worked out in heels people," she quipped to ET while celebrating the release
of her single, "I Don't,"
at Catch LA on Saturday night. "I remember the first time I did this on Cribs
and everyone was like, 'Oh my gosh, she's working out in heels! What is she doing?' I'm like, 'I'm being serious!' Then I was just like, 'Let me just do this for laughs and, you know, I don't know if they took it seriously or whatever."