Crazy - The Boys (US)
- Entered the UK chart on 23 September 1990 and spent 3 weeks in the charts, reaching a high of number 57.
- Re-entered the UK chart on 18 November 1990 and spent 2 weeks in the charts, reaching a high of number 78.
- Motown - The Complete Number Ones (2008) - 7747637
- Motown - The Complete Number Ones (2019) - 7747637(2)
Crazy 
- Aerosmith - Crazy - Alanis Morissette
- Crazy - Andy Bell
- Crazy - Awesome
- Crazy - Bob Geldof
- Crazy - Crystal Gayle
- Crazy - Daisy Dee
- Crazy - Don McLean
- Crazy - E Funk
- Crazy - Eternal
- Crazy - Frank Ifield
Crazy - Gnarls Barkley - Crazy - Hot House
- Crazy - Icehouse
- Crazy - Javier Colon
- Crazy - John Tee
- Crazy - Julio Iglesias
- Crazy - Kay Starr
- Crazy - K-Ci & JoJo
- Crazy - Kenny Rogers
- Crazy - Leann Rimes
- Crazy - Loretta Lynn
- Crazy - Lucid
- Crazy - Lumidee
(featuring Pitbull)
- Crazy - Mark Morrison
- Crazy - Mud
- Crazy - Nut
- Crazy - Oui 3
- Crazy - Patsy Cline
(featuring The Jordanaires)
- Crazy - Seal
- Crazy - Suns Of Light
- Crazy - The Kooks
- Crazy - The Manhattans
- Crazy - The Moffatts
- Crazy - Tomcat
- Crazy - Willie Nelson