Artists · Global Music Power
Helen Terry
Charting May 5, 1984 → Mar 1, 1986 · 12 weeks with chart power
Charted in 2 of 2 markets — Billboard Hot 100 3 wk, UK Singles Chart 9 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
- 0.12%
- week of Jun 9, 1984
- Career Power
- 2
- share-weeks
- Weeks at #1
- 0
- weeks as the top artist
- Peak Year
- 2
- October 1983 – October 1984
- Peak Five Years
- 2
- March 1981 – March 1986
- Top-five weeks
- 0
- weeks ranked 1–5
- Longevity
- 12
- weeks with chart power
- Dominance
- 0.35%
- week of May 26, 1984
- Comebacks
- 0
- none detected
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).