Release Date:
| UK: | November 1990 |
| US: | May 1991 |
Highest Chart Position and (duration):
| UK: | No. 2 (duration unknown) |
| US: | No. 7 (duration unknown) |
Duration in top 40:
Catalogue numbers;
| 7": | 1990 UK/GE (ZTT/Warner ZANG 8) (Int: 9031-73154-7) |
| CC: | 1990 UK (ZTT/Warner. ZANG 8 C) |
| CC: | 1991 US (Sire 19298-4) |
Track listing;
Catalogue numbers;
12": 1990 UK/GE (ZTT/Warner ZANG 8 T) (Int: 9031-73155-0)
Track listing;
| 6:26 | Krazy |
| 6:23 | Sparkle (Extended Version) |
| 7:00 | Crazy (Acoustic Version/Instrumental Version) |
Catalogue numbers;
CD5: 1990 UK/GE (ZTT/Warner ZANG 8 CD) (Int: 9031-73156-2)
Track listing;
| 4:26 | Crazy (7" Mix) |
| 5:09 | Crazy (Extended Mix) |
| 6:26 | Krazy |
Catalogue numbers;
| 12": | 1990 UK (ZTT/Warner ZANG 8 TX) (Int: 9031-73237-0) |
| CD5: | 1990 UK/GE (ZTT/Warner ZANG 8 CDX) (Int: 9031-73237-2) |
Track listing;
| 5:24 | Crazy (William Orbit Mix) |
| 3:26 | Crazy (Acapella mix) |
| 3:52 | Crazy (Do You Know The Way To L.A. Mix) |
| 6:48 | Crazy (Chick On My Tip Mix) |
Catalogue numbers;
12": 1990 UK (ZTT: ZANG 8TX SAM {ZANG-8-TX-A1}{ZANG-8-TX-B3})
- Promo.
Track listing;
| 5:39 | A: | Crazy (William Orbit [Complete] Mix) |
| 3:52 | B: | Crazy (Do You Know The Way To L.A. Mix) ["Bins Instrumental"] |
| 6:46 | | Crazy (Chick On My Tip Mix) ["Crazy Seals"] |
Note: Commercial UK issue of ZANG 8TX has {A3}{B3} matrixes
Catalogue numbers;
CD5: 1991 US (Sire/Warner Bros. 41003-2) [May 91]
Track listing;
| 4:30 | Crazy (Single Mix) |
| 5:29 | Crazy (William Orbit Mix) |
| 7:02 | Crazy (Acoustic Version/Instrumental Version) |
| 3:30 | Crazy (Acapella mix) |
| 6:25 | Krazy |
| 3:50 | Crazy (Do You Know The Way To L.A. Mix) |
| 6:45 | Crazy (Chick On My Tip Mix) |
Catalogue numbers;
12": 1991 US (Sire/Warner Bros. ...) [May 91]
Track listing;
| 4:30 | Crazy (Single Mix) |
| 5:29 | Crazy (William Orbit Mix) |
| 7:02 | Crazy (Acoustic Version/Instrumental Version) |
| 3:30 | Crazy (Acapella mix) |
| 6:24 | Sparkle (Extended version) |
| 6:25 | Krazy |
| 3:50 | Crazy (Do You Know The Way To L.A. Mix) |
| 6:45 | Crazy (Chick On My Tip Mix) |
Catalogue numbers;
CD5: 1991 JP (WEA WMC5-343)
Track listing;
| 4:30 | Crazy (7" Version) |
| 5:09 | Crazy (12" Version) |
| 6:25 | Krazy |
| 5:29 | Crazy (William Orbit Mix) |
| 7:00 | Crazy (Acoustic Version/Instrumental Version) |
| 6:24 | Sparkle (Extended Version) |
Catalogue numbers;
"Urban Remix" -- promo-exclusive mixes by Peace Productions
| 12": | 1991 US (Sire/Warner Bros. PRO-A-4879) |
| CD5: | 1991 US (Sire/Warner Bros. PRO-CD-4879) |
Track listing;
| 4:40 | Crazy (Radio Mix) |
| 4:41 | Crazy (Instrumental) |
| 4:41 | Crazy (Dub) |
Catalogue numbers;
CD5: 1990 US (ZTT/Sire/Warner Bros. PRO-CD-4832)
Track listing;
Catalogue numbers;
CC: 1991 US ( Unknown - Internal WBR release 06/12/91 )
Track listing;
| ?:?? | Crazy (Bin mix) |
| ?:?? | Crazy (S.V.S. mix) |
| ?:?? | Crazy (Cherry Pie mix) |
| ?:?? | Crazy (Nexus 6 mix) |
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