Jessica Ann Simpson is an American singer-songwriter, actress, and model. She first rose to prominence in 1999, and has released albums, such as Sweet Kisses and Do You Know.
For Disney, she performed a cover version of "Part of Your World" from The Little Mermaid, and performed a cover version of "A Whole New World" for the Aladdin Platinum Edition, alongside her ex-husband, Nick Lachey. She is also the older sister of Ashlee Simpson. She and Ashlee had also made an appearance on a Disney Christmas show and concert special.