Grašo co-wrote the lyrics to the song "Metak sa posvetom" with Antonija Šola for Lepa Brena's 2011 album Začarani krug, and composed the music himself.
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Since then, he has collaborated greatly with Oliver, and has also worked with Doris Dragović, Danijela Martinović, Tonči Huljić and Lepa Brena.
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