The Lion King.
Little David Applebaum was in his uncle Michael’s wedding party. As he walked forward, David would repeatedly take two steps, cup his hands around his mouth and yells "ROAR!" He took turns facing the bride's side and the groom's side. Two steps, then "ROAR!"
As you can imagine, the crowd was laughing so hard, they were near tears. As he took his place at the front of the shul, his uncle Michael the groom leaned over and asked, "Davey what are you doing?"
Little David replied seriously, "Why are they laughing at me? I'm the RING BEAR!"