Here it is at the 9:00 mark. This interview is just 4 years after the Chain was written. She takes credit for the chorus and melody of the song and Lindsey asked her to use those in this new song. She claims he only wrote "Listen to the wind blow" She also sort of infers she is the one that came up with the name The Chain.
https://www.youtube.com/watch?v=sjzvaintkJU