The 2007 Disney Pixar movie, “Ratatouille,” has transformed into a TikTok musical. It started with 26-year-old Emily Jacobsen. “I just started singing this song about Remy, the main character, to myself. And I thought it was funny, particularly catchy,” she told Inside Edition Digital’s Leigh Scheps. “Be More Chill” composer Joe Iconis joined in on the trend to write a song. “It's about celebrating these characters that feel like misfits,” Iconic said of why the movie is so popular.