Tina Knowles Celebrates Grandson Julez's 19th Birthday with Sweet Sing-Along: 'Love U Kid'

Solange Knowles shares her teenage son with ex-husband Daniel Smith

Tina Knowles is celebrating her grandson Daniel "Julez" Smith Jr.'s 19th birthday!

The businesswoman, 69, shared a video on Instagram Friday, in which Julez — who is the son of Solange Knowles and her ex-husband, Daniel Smith — could be seen celebrating his special day.

In the clip, Julez sat at the head of a large table as he prepared to blow out the candles on his birthday cake.

He smiled and clapped along as his family and friends serenaded him with “Happy Birthday."

Related: Tina Knowles Shares Rare Photo of Beyoncé and Her Three Kids Alongside Birthday Tribute: 'Precious Gift'

“Love u kid,” Knowles wrote over the Instagram Reel, alongside several heart emojis.

She also shared a birthday message for her grandson in the caption, writing, “Happy Birthday Julez ! And happy Graduation ! We love you and are so proud of you ❤️.”

“This is the song Happy Birthday when you get a bunch of singers together,” Knowles wrote, adding, “The party was Great @solangeknowles you did that !!!❤️❤️❤️.”

Several users joined Knowles in pointing out how harmonious the family’s rendition of “Happy Birthday” was, stating they were able to hear not only Solange’s voice, but also that of Julez’s aunt, Beyoncé, and her fellow Destiny's Child member, Kelly Rowland.

“It’s the [harmonization] for me 😫😫,” one user commented, adding, “You can hear Bey clear as day! 💕👑🐝.”

Another wrote, “Everyone hears Bey, but I hear Kelly 😍 I keep listening 🔥.”

Related: Tina Knowles-Lawson Is 'Proud' of Granddaughter Blue Ivy for Joining Mom Beyoncé's Tour (Exclusive)

Knowles has always been her grandkids’ No. 1 fan, posting about not only Julez, but also Beyoncé’s three children: daughter Blue Ivy and twins Rumi and Sir.

Earlier this month, the proud grandma shared a special tribute to granddaughter Blue, revealing in an Instagram video that the 11-year-old sometimes does her makeup.

“Hi! I’m here with the makeup guru, makeup extraordinaire, Miss Blue Ivy Carter,” Knowles said in a dressing room mirror, as Blue waved in the background.

"She just did my makeup. She’s been doing my makeup for years, and I really like it,” she continued, adding that she was not so sure about the “little glittery stuff on the top."

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In the caption, the businesswoman also praised her eldest granddaughter’s other talents — and compared Blue to her aunt Solange.

“Blue IV Carter. never ceases to amaze me,” she penned. “She can draw, she can paint, she can do makeup, she can play the piano and the list goes on!”

“She reminds me so much of my multi-talented younger babygirl! @solangeknowles who could do well just about anything she put her mind to,” she continued. “But I love her makeup it is so amazing!!!”

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