Leslie Johnson, known as Lazy Lester, was an American blues musician who sang and played the harmonica and guitar. In a career spanning the 1950s to 2018, he pioneered swamp blues, and also played harmonica blues, rhythm and blues and Louisiana blues. Best known for regional hits recorded with Ernie Young's Nashville-based Excello Records, Lester also contributed to songs recorded by other Excello artists, including Slim Harpo, Lightnin' Slim, and Katie Webster.