| Krazy (Extended Version) | ||
| Sparkle (Extended Version) | ||
| Crazy (Acoustic Version/Instrumental Version) |
| Title, Format | Label | Cat# | Country | Year | |
|---|---|---|---|---|---|
| Crazy (12") | ZTT | ZANG 8 T | Europe | 1990 | |
| Crazy (Urban Remix) (12", Promo) | Sire Records Company | PRO-A-4879 | US | 1990 | |
| Crazy (William Orbit Remix) (12") | ZTT | ZANG 8 TX | Europe | 1990 | |
| Crazy (William Orbit Remix) (12") | ZTT | 9031-73237-0 | Germany | 1990 | |
| Crazy (William Orbit Remix) (12", Promo) | ZTT | ZANG 8 TX SAM | UK | 1990 | |
| Crazy (William Orbit Remix) (CD, Maxi) | ZTT | ZANG 8 CDX | Europe | 1990 | |
| Crazy / Sparkle (7") | ZTT | ZANG 8 | UK | 1990 | |
| Crazy (12") | Sire Records Company | 0-41003 | US | 1990 | |
| Crazy (12", Promo) | ZTT | ZANG 8 SAM | UK | 1990 | |
| Crazy (7") | ZTT, ZTT | ZANG 8, 9031-73154-7 | Europe | 1990 | |
| Crazy (CD, Maxi) | Sire Records Company | 9 41003-2 | US | 1990 | |
| Crazy (CD, Maxi) | ZTT, ZTT | ZANG 8 CD, 9031-73156-2 | UK & Europe | 1990 | |
| Crazy (CD, Maxi) | ZTT, ZTT | ZANG8CD, 9031-73156-2 | Europe | 1990 | |
| Crazy (CD, Single, Promo) | Sire Records Company | PRO-CD-4832 | US | 1990 | |
| Crazy (Cass, Single) | Sire Records Company, Sire Records Company | 4-19298, 9 19298-4 | US | 1990 | |
| Crazy (Cass, Single) | WEA Records Pty Ltd. | 9031-73154-4 | Australia | 1990 | |
| Crazy (Cass, Maxi) | Sire Records Company | 9 41003-4 | US | 1991 |