I am an author and motivational rapper who is on the first page of google when searching "Positive Rap". I will give you a 15 - 30 second celebrity-styled radio drop for your radio station, blog, website, business, kickstarter campaign etc.
I will send you an audio file mp3. format. The drop will go something like this:
"This is Marcus "M-Positive" Parker and you are listening to ....................."