The song "Turn! Turn! Turn!" was sung by "The Byrds". This a song that became an international hit in late 1965 when it was adopted by the American folk-rock group "The Byrds". This was the second #1 hit for "The Byrds"; their first was "Mr Tambourine Man' (released in June 1965 on Columbia Records).

It was first written in the late 1950s by Pete Seeger, an American folk singer and social activist who lived from 1919 to 2014. Seeger took the lyrics from a passage in the Bible (Ecclesiastes 3:1-8). They were rearranged and paired with Seeger's music to make the song. Critics said that it had a 'wonderful sound! Just what millions of music fans were looking for.'

This song "Turn! Turn! Turn!" was used in the movie "Forrest Gump" as Forrest says goodbye to Jenny, who is leaving for Berkeley University.

More Info: en.wikipedia.org