Toddler With Down Syndrome Recites What Might Be the Most Adorable Rendition of the 'ABCs' Song You'll Ever Hear

An Alabama toddler's adorable rendition of the "ABCs" song took the Internet by storm since the child's beaming grandmother posted a video of it to Facebook over the weekend.

Two-year-old John David Marlin of Birmingham has Down Syndrome and startled his mother and grandmother when he clearly recited the ABCs for the first time on Sunday, spurring his grandmother to grab a recording device to capture the moment.

Grandmother Pam Sapp told ABC News: "Within the last year, he’s been starting to say a few words like 'mama and dada,' but for him to articulate each letter, that was was amazing to me."