There is this great software called Auto-tune that allows you to take someone's voice and control the timing and pitch, and turn their talking into singing.
This very talented guy makes videos featuring scientists like Carl Sagan, and turnss some of their talks into songs.
Here's one he did using Billy Mays, the famous infomercial hawker, who died of a heart attack a couple of months ago. In this, Mays returns from the afterlife to sing about his favorite products, and enlists the also-deceased Scatman John to deliver an auto-tuned & quantized scat-bridge for his song.
RIP Mr. Mays and Mr. Scatman!
Enjoy the tune: