The picture above seems harmless, right?
This picture is a picture from google of my close friends YouTube. It is a copyrighted image and I could be punished for using it without his permission. Well, obviously I asked him if I could use it for this, but that doesn’t mean you can. He could press charges and take you to court if you don’t pay the fine. The use of pictures without permission is essentially theft of the original owners work, not to mention if you use the picture for profit you could suffer even more severe punishment.
Moral of the story, GET PERMISSION!