It may essentially be old news, but - sometimes - things are just worth a good revisit. Particularly when they also involve dodgy photoshop, Miley Cyrus, and a killer caption.
We're assuming their collaboration (that being Kim and Cara's) didn't end on the most amiable of terms. That or Cara is SUCH good friends with Kim that she can compare her arse to a wrecking ball and get away with it.
Kim Kardashian and Cara Delevingne collaborate on a not-so-secret 'secret project'