Ariana and Frankie Grande are celebrating another year with their grandmother!

Frankie, 40, shared a glimpse into a big celebration for his grandmother’s 98th birthday on Instagram Friday, which included shots of his mom and his pop star sister, along with a sweet message to commemorate the occasion.

“Happy birthday to our superstar Nonna! 98 with the spirit of a 19 year old – we love you to the ends of the universe and back 💕,” Frankie captioned the set of photos.

The Broadway star kicked off his Instagram post with a shot of him and Ariana, 30, posing next to their grandma, who wore a golden sash and crown that read “Birthday Queen.” The Wicked star could be seen with her lips pursed together, while Frankie and his grandmother smiled brightly.

The pair’s mother, Joan Grande, also made a brief appearance in some photos, posing in an all-black ensemble.

Another familiar face, Frankie’s husband Hale Leon, also posed with the pair in front of a backdrop of balloons that read “98.”

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Both Frankie and Ariana have had a close relationship with their grandmother. Nonna was one of the few people Frankie told ahead of time about preparing to pop the question to Leon, he previously shared with PEOPLE.

“It was very important that it be a total surprise,” Frankie said at the time.

Ariana and Nonna also have a special bond. The “Thank U, Next” singer brought her grandma as her plus one to the VMAs in 2014, and also got matching tattoos with the family matriarch after receiving the prestigious Woman of the Year award.

At the time, Ariana shared the moment on her Instagram Story of Nonna getting “Ciccio” inked on her left ring finger, in honor of her late husband, Frank Grande.

The pop star, meanwhile, got a crescent moon next to several stars and a sun on the top of her left hand.

“☀️🌙 for the woman of the year,” Ariana wrote alongside the photo.