In 1966, Thornton recorded her second album for Arhoolie, "Big Mama Thornton with the Muddy Waters Blues Band – 1966", with Muddy Waters (guitar), Sammy Lawhorn (guitar), James Cotton (harmonica), Otis Spann (piano), Luther Johnson (bass guitar), and Francis Clay (drums). She performed at the Monterey Jazz Festival in 1966 and 1968. Her last album for Arhoolie, "Ball n' Chain", was released in 1968. It was made up of tracks from her two previous albums, plus her composition "Ball and Chain" and the standard "Wade in the Water". A small combo, including her frequent guitarist Edward "Bee" Houston, provided backup for the two songs. Janis Joplin and Big Brother and the Holding Company's performance of "Ball 'n' Chain" at the Monterey Pop Festival in 1967 and the release of the song on their number one album "Cheap Thrills" renewed interest in Thornton's career.