Colbie Caillat performed a cover of the song "What a Wonderful World" on Dancing With the Stars tonight for the season finale. Wearing a see-through dress, Colbie Caillat sang as Valerie Harper returned to dance one more time on DWTS. It was very touching.
— Colbie Caillat (@ColbieCaillat) November 26, 2013
Towards the end of the show, Colbie returned for a short performance of her new song "Hold On."