Artists · Global Music Power
John du Cann
Charting Sep 15, 1979 → Oct 20, 1979 · 6 weeks with chart power
Charted in 1 of 2 markets — UK Singles Chart 6 wk
Billboard Hot 100 and UK Singles Chart combined, weighted · UK Singles Chart data ends Sep 18, 2026 · 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, or after one's data ends, sums to less than 100.
UK Singles Chart data runs to Sep 18, 2026; later weeks combine the Billboard Hot 100 only, so their shares — and the most recent years' Era Power — are lower than a full week's would be.
- Peak Power
- 0.12%
- week of Oct 20, 1979
- Career Power
- 1
- share-weeks
- Crowns
- 0
- weeks crowned Artist of the Week
- Peak Year
- 1
- October 1978 – October 1979
- Peak Five Years
- 1
- November 1974 – October 1979
- Top-five weeks
- 0
- weeks ranked 1–5
- Longevity
- 6
- weeks with chart power
- Dominance
- 0.36%
- week of Oct 6, 1979
- Comebacks
- 0
- none detected
Ranked by weekly Power Share, part of the ChartReign Power model — not the chart's own positions. How it works →
Songs on the Global Music Power
1 song · 1 share-weeks of Career Power
Power contributed is what each song earned this artist: their weekly Power Share, split across their songs (a featured credit takes its reduced share). Record Power is the song's own figure, the same for every artist on it. Bar length compares songs within this list. On this combined chart each song's figures are its figures on each market, weighted as the chart weights them, so the list still adds up to Career Power; peaks and weeks are shown per market.
| Song | Peak | Weeks | On chart | Power contributedPower | Record Power |
|---|---|---|---|---|---|
| Don't Be a DummyApple Music | #33 | 6 | 1.4 |
30-second previews and store links from Apple Music.
At their peak
John du Cann's best twelve months on the Global Music Power ran from October 1978 to October 1979. The most powerful artists over those weeks:
- 1Donna Summer119
- 2Chic111
- 3Bee Gees96
- 4Village People83
- 5Earth, Wind & Fire72
- 6Blondie66
- 7Peaches & Herb64
- 8Olivia Newton-John62
- 9Electric Light Orchestra59
- 10Sister Sledge54
Ranked by Era Power over the same weeks.