Lady Gaga's not just at Fashion Week... she's a runway model

After taking two of the biggest stages of the year-- those of the Super Bowl and Grammy Awards-- Lady Gaga found time to perform at another popular event before next week's Oscars... at New York Fashion Week, where she made her runway debut. Natch.

Gaga, who has been attending NYFW shows this week, left her seat (and red wig) to walk on the runway for Marc Jacobs. (She wore custom Marc Jacobs ensembles at the Grammys.)

Here's another look:

And one more, in motion:

Yep, that's Gaga, alright. Here she is right before she walked out:

She's good at keeping her eyes open.