Buddy Holly – lead vocals, lead guitar, acoustic guitar on “It’s Too Late”, backing vocals on “Not Fade Away”
percussion
and backing vocals on “Not Fade Away”
Joe B. Mauldin – double bass (except “That’ll Be the Day” and “I’m Looking for Someone to Love”), backing vocals on “Not Fade Away”
Niki Sullivan – rhythm guitar (except on ”Oh, Boy!”, “Not Fade Away”, “It’s Too Late”, and “Last Date”); backing vocals on “Not Fade Away”, “That’ll Be the Day”, and “I’m Looking for Someone to Love”
Additional personnel
Larry Welborn – double bass on “That’ll Be the Day” and “I’m Looking for Someone to Love”
The Picks (Bill Pickering, John Pickering and Bob Lapham) - backing vocals, except on “Not Fade Away”, “That’ll Be the Day”, and “I’m Looking for Someone to Love”
Ramona and Gary Tollett – backing vocals on “That’ll Be the Day” and “I’m Looking for Someone to Love”