sentences:  His fourth album, "Deca i Sunce" (Children and the Sun) was released on December 24, 2010, under the moniker "Marčelo & Filteri".Album was released in parallel with his novel "Zajedno sami" ("Together Alone") and poem collection "O ljudima, psima i mišima" ("About men, dogs and mice").On October 31, 2012 Marčelo released a song called "Čep" ("Cork") within campaign of NGO ASTRA, targeted towards raising public awareness and encouragement of competent authorities to be involved in fighting against human trafficking and work exploitation.