"When" is a song by Canadian singer Shania Twain. It is the second UK release and fifth single from her third studio album, Come on Over. The song was written by Twain and her then-husband, Robert John "Mutt" Lange, and was originally released on June 1, 1998. It was the only single from Come on Over to not be released in the United States; however, it was released in Canada as a pop single in 2000. The song was included in the Come on Over Tour and in a medley for the Up! Tour. Twain has stated that "When" is her favorite song from Come On Over. "When" is also the theme song for the Japanese drama Cheap Love.