Credits sourced from the original album liner notes.
10cc •
Eric Stewart – lead (1, 2, 4, 5, 7–9), co-lead (6) and backing vocals (1–3, 5, 6, 8, 9), electric lead (all tracks) and rhythm guitars (3, 9), slide guitar (1, 3–5), piano (1, 2, 4–6, 8, 9),
Fender Rhodes electric piano (3, 6, 9), organ (2, 3, 6),
Moog synthesizer (1, 9), maracas (8, 9) •
Graham Gouldman – lead (3, 5, 6, 9) and backing vocals (all tracks), bass guitar (all tracks), fuzz bass (7, 8), electric lead (1, 9) and rhythm guitars (all tracks), 12-string acoustic guitar (9), acoustic guitar (2–4, 9), organ and
dobro (5),
autoharp (9), tambourine (1, 2), handclaps (2), triangle (6), guiro (8) •
Paul Burgess – drums (all tracks), tambourine (1, 2, 4, 9), cabasa (1, 6, 9),
"wah" piano (1),
gong and handclaps (2), congas (3, 9), triangle and
piano stool (3), bell-tree and roto-toms (4), wood blocks and
vibraphone (6),
agogô (8), claves (9)
Additional musicians •
Del Newman –
string arrangements (4, 9) •
Jean Alain Roussel – Fender Rhodes electric piano and organ (8) • Tony Spath – piano (7),
oboe (5) ==Charts performance==