Artists · Global Music Power
Roberta Flack
Charting Jun 12, 1971 → Mar 8, 2014 · 235 weeks with chart power
Charted in 2 of 2 markets · top artist of the week in 1 of them — Billboard Hot 100 201 wk (12 at #1), UK Singles Chart 83 wk
Billboard Hot 100 and UK Singles Chart combined, weighted · How it works
Each week an artist's share is the weighted mean of their Power Share across Billboard Hot 100 ×1 and UK Singles Chart ×0.45 (weights ∝ √population, US = 1). The divisor is every chart's weight, so a number one is worth the same share in any era — and a week before every chart exists sums to less than 100.
- Peak Power
- 2.08%
- week of Apr 14, 1973
- Career Power
- 182
- share-weeks
- Weeks at #1
- 7
- weeks as the top artist
- Peak Year
- 69
- April 1972 – April 1973
- Peak Five Years
- 118
- July 1970 – June 1975
- Top-five weeks
- 25
- weeks ranked 1–5
- Longevity
- 235
- weeks with chart power
- Dominance
- 3.35%
- week of Mar 17, 1973
- Comebacks
- 1
- August 1974
| Kind | Trough began | Returned | Trough weeks | Longest absence | Prior peak | Return share |
|---|---|---|---|---|---|---|
| After decline | Jul 28, 1973 | Aug 17, 1974 | 55 | 30 | 2.08% | 1.11% |
Computed from stored weekly power rows (config version 4, Sep 21, 2026).
Exponentially smoothed share of the week's total power (the primary metric).