3M was a Yugoslav band formed in 1957 by Ivan Krajač consisting of school friends Branko Marušić, Saša Sablić and Željko Ružić.
Together with Krajač, they are best known internationally for representing Yugoslavia in the Eurovision Song Contest 1969 in Madrid with the song "Pozdrav svijetu", which finished in joint 13th place with 5 points alongside the entry by Iva Zanicchi of Italy.
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