| Label: | London Records HL-2145 |
| Genre: | Pop |
| Format: | Vinyl (7" , 45 RPM) |
| A | Sugar Shack | 2:01 |
| B | My Heart Is Free | 1:34 |
| Label: | London Records HLD 9789 |
| Genre: | Rock |
| Style: | Pop Rock |
| Format: | Vinyl (7") |
| A | My Heart Is Free | |
| B | Sugar Shack |
| Label: | Dot Records 45-16487 |
| Genre: | Rock |
| Style: | Pop Rock |
| Format: | Vinyl (7" , 45 RPM) |
| A | My Heart Is Free » Written-By: M. Wilde, M. Hawke | 1:54 |
| B | Sugar Shack » Written-By: F. Voss, K. McCormack | 2:01 |
| Label: | Dot Records FLX 3104 |
| Genre: | Rock |
| Style: | Pop Rock |
| Format: | Vinyl (7") |
| A | Sugar Shack | |
| B | My Heart Is Free |
| Label: | Dot Records 45-16487 |
| Genre: | Rock |
| Style: | Pop Rock |
| Format: | Vinyl (7" , 45 RPM) |
| A | My Heart Is Free » Written-By: M. Wilde, M. Hawke | 1:54 |
| B | Sugar Shack » Written-By: F. Voss, K. McCormack | 2:01 |
| Label: | Barry B-3208X |
| Genre: | Rock |
| Style: | Pop Rock |
| Format: | Vinyl (7" , 45 RPM , Single) |
| A | Sugar Shack » Written-By: F. Voss, K. McCormack | 2:01 |
| B | My Heart Is Free » Written-By: M. Wilde, M. Hawke | 1:54 |
| Label: | London Disques HL-D 80.046 |
| Genre: | Rock |
| Style: | Rock & Roll |
| Format: | Vinyl (7" , Single) |
| A1 | My Heart Is Free | 1:55 |
| B1 | Sugar Shack | 2:10 |
| Label: | London Records DL 20 727 |
| Genre: | Rock |
| Style: | Pop Rock |
| Format: | Vinyl (7" , Single) |
| A | My Heart Is Free » Written By: Hawke / Wilde | |
| B | Sugar Shack » Written By: McCormack / Voss |