Question: On which album did Dan Fogelberg's best know song, which had been released as a single 1980, appear?

Context paragraphs:
Same Old Lang Syne: "Same Old Lang Syne" is a song written and sung by Dan Fogelberg released as a single in 1980.  It was also included on his 1981 album "The Innocent Age".  The song is an autobiographical narrative ballad told in the first person and tells the story of two long-ago romantic interests meeting by chance in a grocery store on Christmas Eve.  The song peaked at #9 on the "Billboard" Hot 100 Chart and is now frequently played during the holiday season and alongside traditional Christmas songs.

The Very Best of Dan Fogelberg: The Very Best of Dan Fogelberg is a 2001 compilation album by Dan Fogelberg, released by Sony Records, and contains 17 tracks.

Longer: "Longer" is a song written and recorded by the American singer-songwriter Dan Fogelberg and released in 1979 by Full Moon Records and Epic Records.  The song can be found on Fogelberg's 1979 album "Phoenix".  It was also included on his 1982 greatest hits album as well as various other retrospective and compilation recordings.

Hard to Say: "Hard to Say" is the title of a popular song from 1981 written and performed by the American singer-songwriter Dan Fogelberg.  The song first appeared on Fogelberg's album "The Innocent Age".

Stars (Dan Fogelberg song): "Stars" is a 1972 ballad from Dan Fogelberg's debut album, "Home Free", and the second track on the album.  The song was written by Fogelberg and produced by Norbert Putnam.  The song was released on the Epic Records label.  The song was later covered Amy Holland in 1980 on her debut album and by Alison Krauss on her 2001 album "New Favorite".

Dan Fogelberg Live: Greetings from the West: Dan Fogelberg Live: Greetings from the West is the twelfth album by American singer-songwriter Dan Fogelberg, released in 1991 (see 1991 in music).  The album was recorded on June 25, 1991 at the Fox Theater, St. Louis, MO.

Leader of the Band: "Leader of the Band" is a song written by Dan Fogelberg from his 1981 album "The Innocent Age".  The song was written as a tribute to his father, Lawrence Fogelberg, a musician and the leader of a band, who was still alive at the time the song was released.  Lawrence died in August 1982.

To the Morning: "To the Morning" is a song written and performed by Dan Fogelberg, with strings arranged by Glenn Spreen.  It is the first song on Side 1 of his debut album, "Home Free".  It is about waking up every day and knowing that it's going to be a new day, regardless of anything else, no matter what happens in life.  (It's going to be a day/There's really no way to say no to the morning) Musically, it is built around the very subtle piano work, with emphasis placed on Fogelberg's vocals while he is singing and the piano or strings during instrumental sections.  The song is peculiar in his canon for featuring no guitar.

Believe in Me (Dan Fogelberg song): "Believe in Me" is the title of a popular song from 1984 written and recorded by the American singer-songwriter Dan Fogelberg.  The song appears on Fogelberg's 1984 studio album "Windows and Walls".

Dan Fogelberg: Daniel Grayling "Dan" Fogelberg (August 13, 1951 – December 16, 2007) was an American musician, songwriter, composer, and multi-instrumentalist whose music was inspired by sources as diverse as folk, pop, rock, classical, jazz, and bluegrass.  He is best known for his early 1980s hits, including "Longer" (1980), "Leader of the Band" (1981), and "Same Old Lang Syne" (1981).

Supporting paragraphs: Dan Fogelberg Same Old Lang Syne
Answer: "The Innocent Age"