We can't even imagine the stress a Victoria's Secret model is under while preparing for the annual fashion show -- the workouts, the lack of solid food, the waxing and buffing. So perhaps the pressure finally caught up to Jessica Hart after Wednesday's lingerie extravaganza, because she had a few choice words about the event's big performer, Taylor Swift. When asked by WWD if the chart-topper would be able to work it in bra and panties, Hart flatly opined, "No."The Aussie model's reasoning turns out to be unique in a profession that prizes youth above all things: She thinks 23-year-old Swiftie, who's performed for millions since she was but a wee teen with a dream of making money off bad breakups, doesn't exude enough gravitas to strut in lingerie -- or warble alongside those sophisticated and self-assured types strutting in said lingerie."I think, you know what, God bless her heart. I think she's great," explained Hart, 27. "But, I don't know, to me, she didn't fit. I don't know if I should say that. I think what you find is that for a lot of us, we've been working for 14, 15 years. What it takes to make it here comes from experience and confidence and knowing how to be confident with yourself. I think it comes with age. It's definitely the benchmark of all jobs."You can check out Taylor at the Victoria's Secret Fashion Show when it airs on CBS on Dec. 10. Until then, click on for more photos of her undies-adjacent performance …