OK, I'm going to break it to you gently. Legendary rapper The Notorious B.I.G. and Nirvana frontman Kurt Cobain never hung out. This picture is fake.
But rather than arguing about what elements of this picture either do or don't look photoshopped, I want you to go to the photo, then find the original two photos which were used to create this.
When you've found them, enter the URLs of them in your fact-checking notebook, with a sentence or two about how you tracked them down.