"All or Nothing" is a song by American boy band O-Town. The track was written by Wayne Hector and Steve Mac, and produced by Mac. It was released on March 20, 2001, as the second single from their debut album, O-Town (2001). The song reached number three in the United States, number five in Canada, and number four in the United Kingdom.

O-Town is the debut studio album released by American boy band O-Town. It was released on January 23, 2001, in the United States by J Records, Trans Continental Records, and BMG.