[header] How to make a fake picture with famous people to impress your friends and family [title] Choose a celebrity photo. [step] Do an image search for the celebrity (or celebrities) you want to be with in the photo. [substeps] Look for a high-resolution image. 
You can always go down in resolution (that is, save a high-res image as low-res), but it's hard to go up. Images taken against a solid colored background will work a lot better than a dynamic or moving background.