Chart performance:
| Week | Position | Movement | Comments |
| 02-Dec-77 | 15 | New | |
| 09-Dec-77 | 10 | +5 | Star rater |
| 16-Dec-77 | 6 | +4 | Star rater/Peak |
| 23-Dec-77 | 9 | -3 | |
| 30-Dec-77 | 15 | -6 | Biggest faller |
| 06-Jan-78 | 9 | +6 | Biggest climber/Star rater |
| 13-Jan-78 | 14 | -5 | |
| 20-Jan-78 | 17 | -3 |
Written by: Leo Sayer & Tom Snow
Produced by: Richard Perry
South African record label (unless otherwise stated): Chrysalis
| Hit number for artist | 7 |
| Peak position | 6 |
| Weeks | 8 |
| Biggest climber awards | 1 |
| Star rater climbs | 3 |
| Biggest faller awards | 1 |
| Top 20 points | 73 |
| Overall Top 20 points ranking | =1344 |
| Top 20 points ranking for the artist | 4 |
| Top 30 Points | 153 |
| Overall Top 30 points ranking | =1463 |
| Top 30 points ranking for the artist | 5 |
Annual ranking:
| 1977 | =75 |
| 1978 | 90 |
Other chart success:
| Australia | 11 |
| Austria | 17 |
| Belgium | 11 |
| Canada | 35 |
| Finland | 22 |
| Netherlands | 12 |
| New Zealand | 21 |
| UK | 22 |
| US | 38 |
| Zimbabwe | 19 |
SA Radio charts:
| Radio 5 | 11 |
The song featured Lee Ritenour on guitar and Toto’s Jeff Porcaro on drums. In 2006 the track was remixed (with Sayer’s blessing) by UK DJ Meck (real name Craig Dimech) and put out with the title ‘Thunder In my Heart Again’. It would go to number 1 in the UK and make the top 20 in most European countries.
Video:
Artist link: Leo Sayer
SA Singles Charts 