I wasn’t really sure what to call this effect so I just named it how it was described in its request.

Before and After

Step 1
Save the following: Base Image and Taylor Swift

Step 2
Open up both images in PhotoFiltre. Open up the rock image and go to Edit >> Define Pattern.

Step 3
Copy and paste the image of Taylor Swift onto the rocks.

Step 4
Go to Edit >> Fade Paste and change the opacity to 55%.

Step 5
Using the clone Stamp Tool with my settings as erase the outer parts.

Step 6
Press the Contrast (+) button twice.

Final Result