WATCH: Justin Timberlake gives autistic boy, 8, the best birthday gift
Do we really need another reason to love Justin Timberlake?
Earlier this year, Beyonce sang the song personally to a 22-year-old girl who came to her concert.
Justin, however, topped it when he did the same thing to a little eight-year-old boy with Autism.
And the video is just brilliant.
Julian Delan kept yelling that Justin singing to him was his birthday present and his parents were just simply beyond grateful for what the Grammy award winner did.
Justin got the crowd at San Jose, California's SAP Center stadium to join him on the song, and boy did they sing.
Photos: Peter Delan/YouTube
Julian's parents Peter Delan and Marika Rosenthal Delan shared the video on YouTube and even wrote a blog post on the event.
Marika posted that her son was diagnosed with autism in 2013 and "wanted nothing but the JT 20/20 Experience for his birthday."
"And at the perfect quiet moment, the group in front of us started yelling to get Justin's attention, because despite his loud volume, Julian's voice was not carrying. Only repeating," Julian's mom said. "And then before we knew what was happening, the group in front of us that had turned out to be so incredibly kind all night to our birthday boy, and these gorgeous girls who I was convinced would be totally annoyed by Julian, had captured Justin's attention."
"And then it happened," she added. "Justin Timberlake was singing Happy Birthday. They all were."
His mother also shared on her Instagram page a photo of her boy smiling.
"We love you, Julian AND we love YOU Justin Timberlake !!!" she wrote. "Thank you for making his birthday SO special!!!"
What an incredible day for all those lovely people!
Sources: E Online, The Manifest Station