Kate Upton Reveals the Only Time She's Sexy at 4 a.m.

Upton won Sexiest Woman at the People Magazine Awards.

— -- It's hard to imagine Kate Upton never looking anything less than amazing.

But when asked about her "least sexy moment" after winning People magazine's Sexiest Woman last night, the 22-year-old supermodel and actress had a simple answer.

"Oh, this morning," she said.

"It was ugly. I almost posted an 'I woke up like this' [photo] but I didn't want to be so truthful," she told People. "Who's pretty at 4 a.m. unless they've been out all night?"

As for who should be extra excited she was voted sexiest woman, that's simple -- her boyfriend Justin Verlander.

"You're welcome, Justin," she said. "So, clearly he has it good."