RACHEL MARTIN, HOST:
Good morning. I'm Rachel Martin. Rumor has it the original members of AC/DC may be getting back together. But while we await confirmation, there's a new cover to chew on.
(SOUNDBITE OF BABY RYAN'S COVER OF AC/DC'S "THUNDERSTRUCK")
MARTIN: That's Baby Ryan's version of "Thunderstruck." His dad, Matt MacMillan, spent a year recording his son's cooing and laughter. He painstakingly isolated them by pitch and stitched them together. The result is some serious competition for AC/DC.
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