Ariel

Ariel is a supporting character of The Singerstars Girls, also as 4th member of the Disney Princesses.

The Singerstars Girls
Alongside the other princesses, Ariel is the supporting character will only appear in some episodes as a guest character. Like Twilight Sparkle, Ariel will be Caitlin Sparkle's new friend. Jodi Benson will probably might come back as Ariel once again or will be replace by a different actress, we will never know.

Trivia

 * Jodi Benson will probably might come back as Ariel once again or will be replace by a different actress, we will never know.
 * Since Ariel is now the supporting guest of the franchise, her portal colour will be green representing her mermaid appearance.
 * Ariel is going to be Caitlin Sparkle's princess/mermaid friend (BFF).