Ariana Grande’s grandfather has lost his battle with cancer.

Last month, Grande turned to Twitter to express her joy over her grandfather beating the malignant cancer he has been battling, reports TheCelebrityCafe.com.

“He is an inspiration & a fighter,” the star wrote in June. “If he can do THIS at his age…we can conquer anything…keep doing it grandps. We love u!!”

Within the past few weeks, though, the Sam and Cat star has been posting photos to her Instagram account to let fans know that her beloved grandpa is very ill and in need of prayer.

It is with a heavy heart that we report that Grande has turned to Twitter this morning to inform fans that her grandfather is no longer with us.

“I lost you to the summer wind,” Grande writes in a string of tweets dedicated to honoring her grandpa.

Ariana’s brother, Frankie, is currently a HouseGuest on CBS’s Big Brother, so many fans are wondering if Frankie will walk away from playing the game to grieve with his family. In the meantime, many fans are tweeting the hashtag #RIPGrandpaGrande to show their support for the celebrity.