Goodnight Irene, Weavers, 1950
Rock Around the Clock, Bill Haley, 1954
Both produced by Milt Gabler for Decca. He also did Strange Fruit with Billie Holiday.
THE MILT GABLER STORY - My Uncle Milt
(Note: Haley &co don't appear until minute 23.)

Rock & roll scared the pants off The Man on both sides of the Iron Curtain.

Harry Belafonte was convinced he and Manhattan calypso would save the day. Harry's business manager was a U.S. Intelligence operative and Day-O was a British Council tune. Probably nothing to that.

And speaking of the Weavers, Pete Seeger & the U.S. Navy were going to combat rock & roll with… Trinidadian steel drum music. I kid you not. Dead serious they were.

Try Rock Around the Bloc, Timothy Ryback, for the Warsaw Pact perspective... rock & roll rationing, tariffs and import quotas, oh my!