Historical clue formulations

• "Country" song of 1971 — 2014-05-26
• *1971 song with the lyric "Helter skelter in a summer swelter" — 2014-04-10
• Song that mentions "the Father, Son and the Holy Ghost" — 2010-01-22
• 1972 #1 hit that starts "A long, long time ago" — 2009-05-03
• 1999 hit comedy — 1999-10-15