Historical clue formulations

• Nickname for singer Justin, with "the" — 2023-10-25
• Pop star nickname, with "the" — 2021-06-06
• Nickname of a 2010s pop idol, with "the" — 2020-07-26
• Nickname of a 2010s pop idol, with "the" — 2019-05-26
• "Boyfriend" singer, to fans, with "the" — 2016-01-14
• "Baby" singer's nickname, with "the" — 2013-09-15