Transcript for Sofia Carson performs ‘Guess I’m a Liar’
We are back now on "Gma" with one of the stars of the Disney phenomenon "Descendants," chart topping singer and activist Sofia Carson. She is here to perform her brand-new single. We're excited about that but first she has a special announcement. You have the floor. Good morning. Thank you so much. I am so deeply honored to be unicef's newest ambassador and I have never struggled more to find the words to express my gratitude to unicef. Congratulations to you and I know you'll do so much great work. You'll perform your new single as we were mentioning called "Guess I'm a liar." Tell us about its empowering Absolutely. I am so excited to perform my single "Guess I'm a liar" for the very first time on "Good morning America." This song is an anthem of heartbreak survival and tells the story of the triumph of self-love when we believed that we couldn't live without him or her and then we realize that we're alive and we can love ourselves better than they ever did so I guess I'm a liar. Well, we can't wait to hear it. In fact, we don't have to wait any longer, Sofia. Here is Sofia Carson with "Guess I'm a liar." I told you I'd never give up
This transcript has been automatically generated and may not be 100% accurate.