Justin Timberlake knows how to make a fan feels special!

The 33-year-old pop R&B singer stopped his concert for a while in San Jose, California, Monday, Aug. 11, and led a crowd of 25,000 in singing "Happy Birthday" to an 8-year-old boy named Julian Delan, who has autism, E! News reported.

Marika Rosenthal and Peter Delan, Julian's parents, took their son to Timberlake's concert as a present for his eight birthday. Marika was initially worried that her son's excited yelling might get on the nerves of the audience members near them, but surprisingly, the crowd in front of them helped his son - who was chanting, "It's my birthday! This is my present! I love you JT!" - to catch the attention of the "Suit & Tie" hitmaker, according to People.

"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," Marika wrote in a post on the website The Manifest Station, sharing Timberlake's heartwarming gesture. "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."

That extraordinary moment made Julian an instant celebrity during his brithday. "It took us over an hour just to get outside the arena whilst Julian was high-fiving and fist-bumping everyone that stopped him," Marika added in her website post. "Thank you for showing me I was wrong about what the world would do when they saw my son. Thank you for seeing him and not just his disability."

Peter, on the other hand, took Facebook to express how grateful he was to the nine-time Grammy-winning recording artist. "Thank you JT for an incredible night!! This is a moment Julian will never forget! Thanks for Gifts you sent down to him."

Watch Timberlake and the concert-goers sing "Happy Birthday" to Julian on the video below: