The Way hitmaker was left starstruck when she found herself in front of the Ace Ventura: Pet Detective star, and in a video posted to Instagram.com, Grande can clearly be seen fighting back tears as she hugs Carrey.
She took to Twitter.com after the meeting and wrote: "met my childhood crush Jim Carrey. (couldn't) even speak. he was kind, warm and human. I'm so happy."
Grande was in Washington, D.C. to perform in the White House gardens, while Carrey read from his kids' book How Roland Rolls.