Artists · Global Music Power
Leo Sayer
Charting Dec 8, 1973 → Jun 10, 2006 · 253 weeks with chart power
Charted in 2 of 2 markets · top artist of the week in all of them — Billboard Hot 100 121 wk (3 at #1), UK Singles Chart 177 wk (3 at #1)
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
- 2.35%
- week of May 28, 1977
- Career Power
- 215
- share-weeks
- Weeks at #1
- 0
- weeks as the top artist
- Peak Year
- 95
- October 1976 – October 1977
- Peak Five Years
- 158
- April 1976 – April 1981
- Top-five weeks
- 19
- weeks ranked 1–5
- Longevity
- 253
- weeks with chart power
- Dominance
- 3.15%
- week of Jan 29, 1977
- Comebacks
- 1
- November 1980
| Kind | Trough began | Returned | Trough weeks | Longest absence | Prior peak | Return share |
|---|---|---|---|---|---|---|
| After decline | Jan 14, 1978 | Nov 29, 1980 | 150 | 74 | 2.35% | 1.05% |
Ranked by weekly Power Share, part of the ChartReign Power model — not the chart's own positions (config version 4, Sep 21, 2026). How it works →
Exponentially smoothed share of the week's total power (the primary metric).