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Jul 29, 2026

The Motown Song Meant for Someone Else—Until Three Brothers Made It Their Own

Detroit, 1965. The Isley Brothers arrived at Motown with something unusual for a new signing: they already knew what it felt like to have success—and to watch it disappear.

Ronald, Rudolph and O’Kelly Isley had spent years moving between labels and trying to build something lasting.

Berry Gordy paired them with Holland–Dozier–Holland.

Then the brothers were handed This Old Heart of Mine (Is Weak for You).

The song had not originally been created with them in mind.

Once Ronald Isley started singing, that history stopped mattering.

YOUTUBE 1 — OFFICIAL LYRIC VIDEO

The production contained everything Motown did brilliantly: pounding drums, urgent percussion, sweeping strings and backing voices pushing the lead singer forward.

But Ronald changed the emotional temperature.

He did not sound polished or restrained. He sounded as if the relationship described in the lyric was actually destroying him.

Released in January 1966, This Old Heart of Mine (Is Weak for You) became the Isley Brothers’ defining Motown recording.

YOUTUBE 2 — OFFICIAL AUDIO

The single reached No. 12 on the Billboard Hot 100 and No. 6 on the R&B chart.

Yet the story did not end in America.

When the record first appeared in Britain in 1966, it barely reached the Top 50.

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