Ariana Grande’s brother, Frankie Grande, once again proved he was her biggest fan by vowing to have her back after she announced her forthcoming hiatus from the spotlight. “Family forever,” the dancer wrote via Instagram, alongside a video of Ariana performing her 2014 track “One Last Time” during her “Eternal Sunshine” tour stop in Chicago on Thursday. “I will have your back until the end of time,” he continued. “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,” Frankie, 43, added. “It was a magical night. You are…
