Artists · Global Music Power

Johnny Logan portraitJohnny Logan

Charting Apr 26, 1980Sep 12, 1987 · 24 weeks with chart power

Charted in 1 of 2 markets · top artist of the week in itUK Singles Chart 24 wk (2 at #1)

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Image credits
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
0.50%
week of Jul 4, 1987
Career Power
15
share-weeks
Weeks at #1
0
weeks as the top artist
Peak Year
8
September 1986 – September 1987
Peak Five Years
8
September 1982 – September 1987
Top-five weeks
0
weeks ranked 1–5
Longevity
24
weeks with chart power
Dominance
1.10%
week of May 10, 1980
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).