First recorded by The Four Seasons (B-side 1964).
Hit version by The Tremeloes (US #11/UK #1/CAN #8/AUS #5/NZ #1/IRE #1/SWE #2 1967).
From the wiki: “‘Silence is Golden’ is a song co-written by Bob Gaudio (‘The Sun Ain’t Gonna Shine (Anymore)‘) of the quartet, The Four Seasons, with Bob Crewe (‘Silhouettes‘, ‘Lady Marmalade‘). It was released as a B-side to the hit song ‘Rag Doll’ (US #1), in 1964.
“It was later covered by the English band The Tremeloes, whose recording was a #1 hit in the UK Singles Chart on 18 May 1967, staying at the top for a total of three weeks. The Tremeloes single hit #11 in the U.S. Billboard Hot 100 chart, and was one of the Top 100 songs of 1967.”
The Tremeloes, “Silence is Golden” (1967):