His father, Peter Delan, and mother, Marika Rosenthal Delan shared videos of the heartwarming gesture online. In the clip, posted on Peter's YouTube page, Delan is seen shouting excitedly, "This is my birthday present!"
Marika blogged about the extraordinary event on the websiteThe Manifest Station, where she posted with video. She stated that her son was diagnosed with high functioning autism in 2013 and added that this year, he "wanted nothing but the JT 20/20 Experience for his birthday."
Timberlake's 20/20 Experience world tour began in November 2013 and is set to end this December.
"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!!!"