Crazy

1. Crazy is a general term used to describe people with a mental illness.
2. Crazy is a magazine, an imitator of MAD Magazine published in the 1970s and 1980s by Marvel Comics.
3. "Crazy" is a song written by Willie Nelson, and was most notably sung by Patsy Cline, her third country hit song.
4. "Crazy" is a song performed by Britney Spears. It peaked in 1999.