It was written by Steven Tyler and Brad Whitford and released as the first single from the album Rocks in 1976.

It peaked at number 21 on the Billboard Hot 100, one of a string of hits for the band in the mid-1970s.

"[4] Cash Box said that "it's right in the groove: a straightforward rock tune with a slick, rhythm oriented arrangement.

During his appearance as a guest on That Metal Show in 2012, Whitford stated that he actually wrote and performed the solo himself.

"Last Child" has been rereleased on compilations including Aerosmith's Greatest Hits, O, Yeah!