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Tracklist
| Tough At The Top (Full Vocal) | 7:41 | |
| Tough At The Top (Radio Edit) | 2:48 | |
| Weekend World (Calyx Remix) | 7:56 | |
| Weekend World (Original) | 4:36 |
Versions
| Title, Format | Label | Cat# | Country | Year | |
|---|---|---|---|---|---|
| Tough At The Top (12") | Higher Education | 0-44597-A | US | 1998 | |
| Tough At The Top (Remixes) (12") | Moving Shadow | SHADOW 120 R | UK | 1998 | |
| Tough At The Top (The Remixes - CD1) (CD, Maxi) | Moving Shadow | SHADOW 120 CD | UK | 1998 | |
| Tough At The Top (The Remixes - CD2) (CD, Maxi) | Moving Shadow | SHADOW 120 CD2 | UK | 1998 | |
| Tough At The Top (12", Promo) | Moving Shadow | SHADOW 120 R | UK | 1998 | |
| Tought At The Top (12") | White And Black, Moving Shadow | WNB 001 | Italy | 1998 | |
| Tough At The Top (Remixes Pt. 2) (12") | Moving Shadow | SHADOW 120 R2 | UK | 1999 | |
| Tough At The Top (Remixes Pt. 2) (12", W/Lbl, Sti) | Moving Shadow | SHADOW 120 R2 | UK | 1999 | |
| Tough At The Top (12", RE) | Moving Shadow | SHADOWXV 120 R | UK | 2006 |