Actor Josh Gad, who is the voice of Olaf in “Frozen” and “Frozen 2,” stopped by to surprise guests attending Disney's Hollywood Studios. He appeared at the end of the “For the First Time In Forever: A Frozen Singalong Celebration” and even sang Olaf's famous tune, "In Summer."
At the "For the First Time In Forever: A Frozen Singalong Celebration" Arendelle's Royal Historians tell the history of the enchanted kingdom while moments from the hit movie play on-screen and Anna, Elsa and Kristoff sing along with the audience.
News & Media Source: Disney Parks Blog