"Don't Worry" is a 1961 country/pop single written and recorded by Marty Robbins. "Don't Worry" was Marty Robbins' seventh number one on the country chart and stayed at number one for ten weeks. The single crossed over to the pop chart and was one of Marty Robbins' most successful crossover songs, peaking at number three on the Hot 100

"Don't Worry" is an early example of guitar distortion. Session guitarist Grady Martin, using a faulty channel in the mixing-desk for his six-string bass, created a distorted sound. Although Martin did not like the sound, Robbins' producer left the guitar track as it was.

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