It’s been obvious that Miley Cyrus has slimmed down and shaped up with Pilates classes, as she’s been spotted leaving them pretty much daily — six times a week to be exact, according to her instructor.

Her instructor, Mari Winsor, is now sharing the starlet’s workout routine in a video.  Mari focuses on the waist, the glutes, the butt, the inner and outer thighs, and of course the abs,  which she calls “your powerhouse.”

Check out the video below to see what she means.