Historical clue formulations

• Broke up a band, say — 2023-02-03
• Struck out on one's own — 2020-03-12
• Emulated Diana Ross (1970) and Justin Timberlake (2002) — 2015-01-25
• Broke from the band, say — 2012-07-10
• Broke off from a group — 2012-01-17
• Broke from the band, maybe — 2007-10-02
• Left the band, perhaps — 2001-12-04
• Traveled unaccompanied — 1997-10-19