Video Of The Day June 20: Deaf Three-Year Old Hears Dad's Voice For The First Time

Thanks to advances in technology and the ability to share videos online, we've gone through a handful of tissue boxes as we witnessed cochlear implants being turned on for the first time. Nothing quite like seeing Grayson Clamp hearing "daddy loves you" as the very first words he hears from his father's voice. 

Grayson, 3, hasn't experienced success with cochlear implants, so when doctors invited him to participate in trials for an auditory brain stem implant, his parents jumped at the opportunity. And it worked. 

As you'll see in the video below, Grayson absolutely lights up the moment he hears his father's voice for the first time.