Historical clue formulations

• Any member of BTS, e.g. — 2021-07-04
• Elvis in the 1950s or Justin Bieber in the 2010s — 2017-10-23
• Any member of One Direction — 2015-06-14
• Minor celebrity? — 2011-03-26
• Poster girl — 2010-12-31
• Potential poster boy — 2010-10-09
• Tiger Beat topic — 2007-01-28
• Tiger Beat cover subject — 2006-08-17
• YM cover subject — 2004-01-16
• Object of many crushes — 2003-10-18
• Tiger Beat topic — 2000-02-12