Artists · Global Music Power
Firefly
Charting Oct 18, 1975 → Apr 13, 2002 · 11 weeks with chart power
Charted in 2 of 2 markets — Billboard Hot 100 9 wk, UK Singles Chart 2 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
- 0.10%
- week of Dec 20, 1975
- Career Power
- 1
- share-weeks
- Crowns
- 0
- weeks crowned Artist of the Week
- Peak Year
- 1
- December 1974 – December 1975
- Peak Five Years
- 1
- January 1971 – December 1975
- Top-five weeks
- 0
- weeks ranked 1–5
- Longevity
- 11
- weeks with chart power
- Dominance
- 0.25%
- week of Dec 13, 1975
- 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
2 records · 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 |
|---|---|---|---|---|---|
| Hey There Little Firefly Part I | #67 | 9 | 1.3 | ||
| Supernaturalfeat. Ursula Rucker | #96 | 2 | 0.1 |
At their peak
Firefly's best twelve months on the Global Music Power ran from December 1974 to December 1975. The most powerful artists over those weeks:
- 1Eagles73
- 2John Denver63
- 3Elton John60
- 4Barry Manilow59
- 5Linda Ronstadt58
- 6Freddy Fender57
- 7Frankie Valli57
- 8Carpenters56
- 9Olivia Newton-John54
- 10David Bowie52
Ranked by Era Power over the same weeks.