"Annie's Song" (also known as "Annie's Song (You Fill Up My Senses)") is a folk rock and country song recorded and written by singer-songwriter John Denver. The song was released as a single from Denver's album, Back Home Again. It was his second number-one song in the United States, occupying that spot for two weeks in July 1974. "Annie's Song" also went to number one on the Easy Listening chart. Billboard ranked it as the No. 25 song for 1974.