Mariah Carey works out in stilettos and fishnets

Mariah Carey, when working out, wears exactly what you’d expect her to.

Carey, 46, posted on Instagram what she wears to feel the burn: high heels, fishnets, and lingerie, topped with a varsity jacket.

In one snippet, where she lifts 20-pound dumbbells in celebrity trainer Gunnar Peterson’s gym, Carey wrote, “We must we must.”

In a photo showing off her derriére, she wrote, “Climb every mountain.” In another brief clip of the singer running drills next to equipment, she wrote, “Running amok.”

The workout gear is unconventional for most, but relatively expected for Carey: The diva may have been calling back to her iconic 2001 MTV “Cribs” episode, in which she gamely hopped on her StairMaster in heels and a black tube dress.

She later commented, “I was joking around people, hello? I don’t really ride the StairMaster in my high heels … but I would. Some people were taking what I was doing totally seriously, but I was just having fun. I thought it was funny!”