In 1966, the Righteous Brothers left Spector and signed with Verve/MGM Records, and had a hit with "(You're My) Soul and Inspiration". However the duo broke up in 1968, and Hatfield teamed with singer Jimmy Walker (from The Knickerbockers) using the Righteous Brothers name on the MGM label. The new partnership released an album but did not have much success. Hatfield recorded a number of singles as a solo artist, such as the self-penned "Hang Ups" and covers of older songs, but "Only You" was his only charted single, peaking at No. 95. In 1969, Hatfield also appeared in the TV movie The Ballad of Andy Crocker. In 1971, he released a solo album, Messin' in Muscle Shoals, recorded at the FAME Studios in Muscle Shoals in August 1970. However, MGM was in financial trouble, a scheduled single "The Promised Land"/"Woman You Got No Soul" was not released, and with little promotion the album largely went unnoticed.