"Undo It" is a song written by Carrie Underwood, Kara DioGuardi, Marti Frederiksen, and Luke Laird. It was made available to digital retailers on October 27, 2009, and was released as an official single on May 24, 2010. The song is the third single from Underwood's third studio album, Play On. Underwood performed the song at the 2010 American Idol finale, as well as at the 2010 CMT Music Awards. "Undo It" has sold 1.6 million copies in the United States, making it the 7th biggest song of her career. It was also her first song to chart in Australia, peaking at Number 85.