"Saturday" is one of the most aggressive and lively rock inspired tracks ever recorded by John. It features energetic, rapid-fire piano playing reminiscent of Jerry Lee Lewis. The song was one of the few John-Taupin songs that Elton said was not a "typical piano number". According to John's recollection in Elizabeth Rosenthal's "His Song: The Musical Journey of Elton John," it may have been written on the piano at first, but the song ended up being recorded somewhat in reverse to the normal way he records, with the band putting their tracks down, and Elton overdubbing his piano afterward. (John's typical process was to either record the piano first or play along with the band.) Elton called the song "hard to record".