: Guest "features" were not a standard industry practice for the Hot 100 in the '60s. Instead, most collaborative hits were listed as duos (e.g., "Dinah Washington & Brook Benton") or as a main artist "with" their backing group (e.g., "Elvis Presley with The Jordanaires").
: The decade was notable for pop instrumentals that "featured" a specific orchestra or sound. Percy Faith's "Theme from A Summer Place" was the No. 1 overall song of 1960 and remains one of the longest-running instrumental number ones in chart history. Top Billboard Hot 100 Hits of the 1960s Billboard Hot 100 Anos 60
"The Twist" by Chubby Checker holds a unique place in history as it reached No. 1 in two separate years () and was later named the "biggest hit" of the 1960s by Billboard . : Guest "features" were not a standard industry