There have many "Don't Worry" songs over the years, including a Marty Robbins hit of that title in 1961
. Stevie Wonder had "Don't You Worry 'Bout A Thing" in 1974, and Bob Marley got into the spirit with his 1977 Exodus
track "Three Little Birds," which goes, "Don't worry about a thing, 'cause every little thing's gonna be alright."
The "don't worry" theme came up again in the 1994 movie The Lion King
, where "Hakuna Matata," meaning "no worries" is a key song and also a major plot point.