Rotten to the Core (Sofia Carson)

A second version of "Rotten to the Core", performed by American recording artist, Sofia Carson, was released as single on December 18, 2015, by Walt Disney Records. The decision to release the song was made to promote the computer-animated short-form series, Descendants: Wicked World, which Carson's version is the opening theme. The song was included in the soundtrack to the Disney Channel Original Movie, Descendants (2015). There is a video of Sofia singing this in Spanish.

Chart performance
On December 12, 2015, "Rotten to the Core" peaked at number one on the Billboard Kid Digital Songs. The song did not enter the Billboard Hot 100 but peaked at number five on the Bubbling Under Hot 100 Singles chart.

Live performances
On August 17, 2015, Carson performed the song at D23 Expo and short a cappella version during an MTV interview, on September 27. On November 26, she performed "Rotten to the Core" at Macy's Thanksgiving Day Parade. The song was performed at American Spanish-language show El Gordo y la Flaca on December 9. She also sang a Latin remix at Feliz!, a New Year's Eve special on Univision, on December 31. The version wasn't released in a studio version.

Music video
The official music video for the song directed by British directors Naren Wilks and Adam Santelli. It was recorded in July and premiered on Disney Channel on August 23, 2015, after Best Friends Whenever. The video uses a 3D green screen cylinder, an illusionary technique that capturing a kaleidoscope-like effect onscreen. The video begins with Carson dressed as a princess in an explosion of fireworks when she picks up the mirror of the Evil Queen and recites: "Mirror, mirror in the night, show a girl a little light". A trail of light transports her to a black-and-white scene, where she begins to sing while it multiplies. In another scene, Carson sings to six mirrors, where each reflects her dancing different from the others. In a third scene, she sings alone on a purple background with lights. Various effects for the video and multiple Carson. In the end, she leaves the mirror and recites: "Mirror, mirror, what does our future hold? Show me what happens when our stories unfold" giving us a hint of Descendants: Wicked World.