Melissa McCarthy wows at CinemaCon with 'Poor Unfortunate Souls' debut.

Attendees at CinemaCon were treated to a first look at Melissa McCarthy as Ursula in Disney's upcoming live-action remake of "The Little Mermaid." McCarthy introduced a clip of the movie, which included her rendition of "Poor Unfortunate Souls." The film stars Halle Bailey as Ariel and is set to release in theaters on May 26. Along with McCarthy and Bailey, the voice cast includes Jonah Hauer-King, Javier Bardem, Jacob Tremblay, and Daveed Diggs. Disney has previously released live-action remakes of several of its animated classics.