"Gone Crazy" is a song written and recorded by American country music artist Alan Jackson. It was released in January 1999 as the third single from his album High Mileage. The song peaked at number 4 on the U.S. country singles charts in 1999.

"Gone Crazy" is a mid-tempo ballad where the male narrator expresses his feelings over a lost love, saying "But ever since you left, I've been gone / Gone crazy, goin' out of my mind[…]".

Deborah Evans Price, of Billboard magazine reviewed the song favorably, saying that Jackson's "stone-country vocal drips with pain and the remorse of a man who let love slip through calloused hands."

Jeffrey B. Remz of Country Standard Time cited the song as a standout track on High Mileage, calling it a "spare, sad ballad" and saying that the song's theme of lost love was "not surprising" given that Jackson had just separated from, and reunited with, his wife.

"Gone Crazy" debuted at number 53 on the Billboard Hot Country Singles & Tracks (now Hot Country Songs) charts dated for the week ending February 6, 1999.

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