Ariana Grande on NBC News' "Today" show on Sept. 3, 2013.
Peter Kramer/NBC/NBC NewsWire
Ariana Grande is celebrating the one-year anniversary of “Problem” with a special message for fans — and a tease about what’s to come.
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“One year since #problem!!!! what a year it’s been,” Grande wrote. “I’ll never be able to find the words to fully express my gratitude and appreciation to be able to do what I love and to have the greatest, sweetest, funnniest (but actually the funniest……. ever), kindest, most generous and genuine fans (loves) in the world by my side. y’all are dream babes and I love you. here’s to more music and memories (I may or may not be in the studio working on it right now).”