''Keep Movin' On'' would be one of Haggard's most commercially successful albums, containing three #1 hits. The first of these, "
Kentucky Gambler," had been written by fellow country star
Dolly Parton (she also provides background vocals on Haggard's version). It stayed at number one for a single week and spent a total of eleven weeks on the chart. Haggard had first recorded one of Parton's compositions, "In the Good Old Days (When Things Were Bad)" on his 1968 album
Mama Tried. "Always Wanting You" followed "Kentucky Gambler" to the top of the
Billboard country singles chart, adorned with an almost easy listening pop sound that producer
Ken Nelson also employs on several of the album's other tracks. The sweetened sound that Nelson employed on Haggard's final
Capitol LPs followed the fashionable
countrypolitan sound that was dominating country radio in the mid-seventies. The final #1 song from the album was its title track, which was the full-length version of a song that Haggard had recorded as the theme song to the TV series ''Movin' On'' starring Claude Akins and
Frank Converse, which ran for two seasons on
NBC. "Movin' On" became Haggard's seventh consecutive #1 hit and thirteenth since 1970. Another song from the album is "Life’s like Poetry", which Haggard wrote for his friend
Lefty Frizzell, who was trying to make a comeback. Frizzell recorded the song in January 1975, and his version peaked at No. 67 on the Billboard country charts, and was to be Frizzell's second-to-last single to hit the charts (before "Falling"); Frizzell would suffer from a stroke and die in July that year. ==Critical reception==