Gamma
Gamma Albums
| Gamma 2 | #65 | 1980 |
Gamma Singles
| Right The First Time | #77 | 1982 |
| I'm Alive | #60 | 1980 |
When viewing the data, keep in mind that it starts on March 12, 1977, using the Hot 100 and Billboard 200 charts.
Album data is mostly from the top 50 of the album chart, but also includes the top 100 from Mar 12, 1977- Jul 25, 1981 & Nov 27, 2021 - present.
Album data is mostly from the top 50 of the album chart, but also includes the top 100 from Mar 12, 1977- Jul 25, 1981 & Nov 27, 2021 - present.