"That's All It Took" is a song written by George Jones, Darrell Edwards, and Charlotte Lynn Grier and originally recorded by Jones as a duet with Gene Pitney on Musicor Records. Jones and Pitney had scored a Top 20 hit in 1965 with "I've Got Five Dollars and It's Saturday Night" and also recorded two LPs together. However, "That's All It Took" was not a hit, only making it to number 47 on the Billboard country singles chart. Although a rather obscure song, country-rock pioneer Gram Parsons recorded the song as a duet with Emmylou Harris on his debut solo album GP in 1973. A live version by Parsons and his band the Fallen Angels also appears on the 1982 release Live 1973.