The CD Single featured 3 mixes
1. Crazy
2. Crazy (Extended Version)
3. Krazy
Could be either 2 or 3 here, 3 has a more thumping bassline under it.
Other mixes are available too...
The American Import Version has
1. Crazy (Single Version)
2. Carazy (William Orbit Mix)
3. Crazy (Acoustic Version/Instrumental Version)
4. Crazy (A Cappella Mix)
5. Sparkle
6. Krazy
7. Crazy (Do You Know The Way To L.A. Mix)
8. Crazy (Chick On My Tip Mix)
Need any more info, give us a holler