Historical clue formulations

• "99 Luftballons" singer — 2025-07-05
• Band with the 1984 hit "99 Luftballons" — 2025-02-25
• "99 Luftballons" singer — 2024-11-06
• "99 Luftballons" singer — 2024-05-28
• "99 Luftballons" singer — 2023-05-18
• "99 Luftballons" singer — 2023-03-12
• "99 Luftballons" singer — 2022-05-20
• "99 Luftballons" singer, 1984 — 2021-11-15
• "99 Luftballons" band, 1984 — 2021-07-06
• "99 Luftballons" singer — 2020-11-27
• "99 Red Balloons" singer — 2020-05-18
• "99 Luftballons" singer — 2019-01-08
• German pop star who once had a #2 song — 2018-08-01
• Singer with the 1984 hit "99 Luftballons" — 2017-04-23
• One-named German singer who was a one-hit wonder — 2015-09-17
• Singer of "99 Luftballons" — 2015-08-05
• "99 Luftballons" singer — 2015-04-29
• "99 Luftballons" pop group — 2015-04-12
• "99 Luftballons" singer — 2013-01-29
• "99 Luftballons" singer, 1984 — 2013-01-01
• "99 Luftballons" singer — 2012-07-11
• "99 Luftballons" singer — 2011-10-17
• "99 Luftballons" singer, 1984 — 2011-03-06
• "99 Luftballons" hit-maker of 1984 — 2010-10-24
• "99 Luftballons" band, 1984 — 2010-08-04
• "99 Red Balloons" singer, 1984 — 2010-06-29
• "99 Luftballons" pop group — 2009-10-25
• "99 Luftballons" pop group — 1996-08-09
• "99 Luftballons" singer — 1995-07-13
• "99 Luftballons" singer — 1994-01-22