Joey Dee & the Starliters' "Peppermint Twist, Pt. 1"

I just listened to Billboard Top Rock & Roll Hits: 1962, and I noticed something about Joey Dee & the Starliters' "Peppermint Twist, Pt. 1."  Starting at about 1:36, there's a vocal tag, and one of the phrases in it is:

These are the same intervals that I noticed in three songs by the Isley Brothers just over a year ago ("Twistin' with Linda," "Respectable," and "Shout"):

As in "Shout," after the lead singer sings that phrase, it's repeated in the backing vocals.

"Respectable" and "Shout" are from 1959; "Twistin' with Linda" is from 1962; and "Peppermint Twist, Pt. 1" is also from 1962 (as the title of the album would suggest).  Chronologically, it's possible that the Starliters took that phrase from the Isleys, but I don't know anything about them, so I wouldn't argue that influence too strongly.