"Don't Worry" is a song written and recorded by American country music artist Marty Robbins. It was released in February 1961 as the third single from his compilation album More Greatest Hits. The song was 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.