Ariana Grande is a gifted vocalist, songwriter and actress, but before she was any of those things, she was a great sister. To prove it, Frankie Grande posted a sweet tribute to his superstar little sis in honor of National Siblings Day on Wednesday (April 10), thanking her for standing by him — especially in the past six years as he’s worked to maintain a sober lifestyle.
Sharing a selfie with Ari, who makes a kissy face in the photo as the Big Brother alum grins at the camera, Frankie wrote, “I want to take a moment to thank the BEST sister in the world for being there for me through thick and thin.”…
