Historical clue formulations

• Singer Clark with the 1965 #1 hit "Downtown" — 2025-07-07
• Singer Clark — 2017-06-03
• "Downtown" singer Clark — 2007-08-05
• "Downtown" singer Clark — 2004-10-12
• First name in 60's pop — 2003-02-15
• Singer Clark — 2002-02-24
• Singer Clark — 1999-07-04
• Singer Clark — 1998-06-18