No one loves Ariana Grande harder than Frankie Grande.

After the “Love Me Harder” singer spoke out about taking a break from the spotlight following the conclusion of her Eternal Sunshine Tour, her brother made it clear he’ll always be by her side.

“Family forever. I will have your back until the end of time,” Frankie wrote on Instagram Aug. 7 alongside a clip of him singing along to Ariana’s 2014 hit “One Last Time” at her Aug. 6 concert stop in Chicago. “I am so proud of you and so happy for you. Last night was a beautiful celebration of your artistry and the magnificent eternal sunshine family you have built and created.”

“It was a magical night,” he added. “You are magical. You are my everything and I am so so happy I was there to see you shine on this tour one last time.”

The Titaníque star’s sweet shoutout comes one week after the Grammy winner’s rep shared she’d be taking a hiatus from the public eye after the final stop in her Eternal Sunshine Tour Sept. 1.