ISRC
Song: MAMA SAID KNOCK YOU OUT
Last verified:
The ISRC for this recording (“Mama Said Knock You Out (Undefeated remix)”) is USUM71607710. ISRCs are 12-character ISO 3901 identifiers that uniquely tag a specific sound recording — different masters, remixes, and live versions each receive a distinct ISRC. Released 2021-04-01. The underlying musical work is ISWC T-071849801-1. Written by GREGORY E JACOBS, JAMES TODD SMITH, WALTER MORRISON, and others.
Credit Chain
USUM71607710 is an International Standard Recording Code (ISRC) that uniquely identifies the recording “Mama Said Knock You Out (Undefeated remix)” by LL Cool J. ISRCs are 12-character alphanumeric codes defined by ISO 3901, used globally by streaming platforms, record labels, and rights organizations to track plays and distribute royalties.
This recording is linked to the musical work T-071849801-1, which represents the underlying composition. Multiple recordings can share the same musical work — for example, an original version, a remix, and a cover would each have their own ISRC but reference the same ISWC.
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The ISRC for this recording (“Mama Said Knock You Out (Undefeated remix)”) is USUM71607710. ISRCs are 12-character ISO 3901 identifiers that uniquely tag a specific sound recording — different masters, remixes, and live versions each receive a distinct ISRC. Released 2021-04-01. The underlying musical work is ISWC T-071849801-1. Written by GREGORY E JACOBS, JAMES TODD SMITH, WALTER MORRISON, and others.
Identifier Graph
MLC Song Code
