| Crazy | 3:01 | ||
| Just A Thought | 2:41 |
| Title | Label | Cat# | Country | Year | |
|---|---|---|---|---|---|
| Crazy (CD, Single) | Warner Music UK Ltd. | 50 51011 3742 5 8 | Europe | 2006 | |
| Crazy (10", S/Sided, Ltd, Sil) | Not On Label (Gnarls Barkley) | CRAZY-1A | US | 2005 | |
| Crazy (Hitmixers Remix) (12", Unofficial, S/Sided, W/Lbl) | Not On Label (Gnarls Barkley), Not On Label (Hitmixers Series) | crazy001 | UK | 2006 | |
| Crazy (Hitmixers Remix) (12", Unofficial, S/Sided, W/Lbl, Sti) | Not On Label (Gnarls Barkley), Not On Label (Hitmixers Series) | Crazy001 | UK | 2006 | |
| Crazy (Malpractice Remix) (12", S/Sided) | Malpractice | MALPRACTICE 001 | Canada | 2006 | |
| Crazy (Remixes) (CD, Promo) | Warner Bros. Records | 43340-0 | US | 2006 | |
| Crazy (Shiloh Remix) (12", S/Sided) | Not On Label (Gnarls Barkley) | CRAZY 001 | Canada | 2006 | |
| Crazy (Spencer Collective Edit) (12", S/Sided) | Not On Label (Gnarls Barkley) | GB01 | UK | 2006 | |
| Crazy (The Funky Mix) (12", Unofficial, S/Sided) | Not On Label (Blu Trax Series) | Blutrax Vol-2 | UK | 2006 | |
| Crazy (10", S/Sided, Promo) | Warner Music UK Ltd. | SAM01118 | UK | 2006 | |
| Crazy (12", S/Sided) | Not On Label (FU Series), Not On Label (Gnarls Barkley) | FUWHITE 15 | Germany | 2006 | |
| Crazy (12", S/Sided, Etch) | Warner Music UK Ltd. | WEA401T | UK | 2006 | |
| Crazy (7", Pic, Ltd, Single) | Warner Bros. Records | WEA401 | UK | 2006 | |
| Crazy (CD, Maxi) | Warner Music (Australia) | 5101-14328-2 | Australia | 2006 | |
| Crazy (CD, Single) | Warner Bros. Records | WEA401CD | UK & Europe | 2006 | |
| Crazy (CD, Single, Promo) | Warner Music UK Ltd. | PRO 15794 | UK | 2006 | |
| Crazy (File, WAV) | Malpractice | none | Canada | 2006 | |
| Crazy (Breaks Remix) (12", W/Lbl, Unofficial) | Not On Label (Gnarls Barkley) | CRAZY001 | UK |
referencing Crazy (Spencer Collective Edit), 12", S/Sided, GB01
referencing Crazy, 7", Pic, Ltd, Single, WEA401
Disclaimer: Videos may not match exact release