Historical clue formulations

• Leo with the 1977 #1 hit "You Make Me Feel Like Dancing" — 2022-10-02
• Leo with the 1977 #1 hit "When I Need You" — 2017-04-22
• Leo with the 1977 #1 hit "You Make Me Feel Like Dancing" — 2015-11-01
• Follower of nay or sooth — 2007-07-16
• Vocal individual — 2004-04-16
• Quoted one — 2002-07-14
• One making pronouncements — 1998-12-12
• Pop singer Leo — 1997-03-24
• Announcer — 1995-12-10
• Word with nay or sooth — 1994-06-27