Artists · Global Music Power

Thelma Houston portraitThelma Houston

Charting Jan 31, 1970Jan 21, 1995 · 68 weeks with chart power

Charted in 2 of 2 markets · top artist of the week in 1 of themBillboard Hot 100 51 wk (1 at #1), UK Singles Chart 25 wk

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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
1.81%
week of May 7, 1977
Career Power
47
share-weeks
Weeks at #1
0
weeks as the top artist
Peak Year
39
August 1976 – August 1977
Peak Five Years
44
July 1976 – July 1981
Top-five weeks
1
weeks ranked 1–5
Longevity
68
weeks with chart power
Dominance
2.43%
week of Apr 23, 1977
Comebacks
0
none detected

Computed from stored weekly power rows (config version 4, Sep 21, 2026).

Exponentially smoothed share of the week's total power (the primary metric).