This is considered a Bokeh-Panorama, where it is using a technique of stitching together several photos which were taken with a wide aperture. Very tricky at first, but with practice it comes a little easier.

This was created using several different images. The key was to frame the shot and use a tripod first. Once all of the necessary pictures are taken, they can be stitched together in photoshop along with other processes. This particular image consists of around six images.