You Can't Do That

"You Can't Do That" is a song written by John Lennon (credited to Lennon–McCartney) and released by the Beatles as the B-side of their sixth British single "Can't Buy Me Love".

Composition

One of Lennon's semi-autobiographical songs, "You Can't Do That," "contradicted the genial tone with its tense threats, sexual paranoia and nagging, dragging groove," according to Robert Sandall. The song's jealousy theme was re-visited in other Lennon compositions, such as "Run for Your Life" and "Jealous Guy". Influenced by the then relatively unknown Wilson Pickett the song is rooted in the twelve-bar blues form, with Lennon introducing a discordant Sharp 9th (F) on the D7th chord, pointedly emphasising "…I told you before…" and then pushing this note for the exasperated "Oh!" before resolving to the song's key of G. Lennon also played the guitar solo, which he conceived. The song reflected Lennon's love for hard-edged American R&B—"a cowbell going four in the bar and the chord going chatoong!" as he put it.