Fitspiration: Contortionist Queens, The Ross Sisters, Bring Flexibility To A Whole New Level

We'd like to give a standing ovation for The Ross Sisters - the all-singing, all-dancing, contortionist trio - who put our apple eating to shame (watch the video for reference).

The video, from 1944, recently resurfaced on Facebook to bring us some vintage fitspiration - and boy are we glad it did.

TIP: the video starts off slow, but bear with it. If you're pressed for time skip to 1 minute in, which is where the fun really starts happening.

We're not sure why they are singing about potato salad, but we can't get the tune out of our heads.

Now if you'll excuse us, we're off to do some yoga...