The 12th Zagreb Pride took place on 15 June 2013, attracting a record-breaking 15,000 participants. It was supported by many celebrities, NGOs, and politicians, including Vesna Pusić, Mirela Holy and Prime Minister Zoran Milanović's wife Sanja Musić Milanović. The motto of the march was "This is a country for all of us", and it was a direct reaction to the initiative introduced by the right-wing organization called U ime obitelji (), that would limit the term "marriage" to heterosexual communities by introducing a constitutional amendment through a referendum. The initiative was backed by the Catholic Church and other right-wing organizations and political parties. Many of those who were against it decided to support Zagreb Pride, making it almost four times bigger than the one in 2012. The Government officially opposed the possible referendum, and announced it will send the referendum question to the Constitutional Court for a review. The Pride went without a single incident, with many bystanders supporting it. Mile Kekin, a frontman of the Croatian punk rock band Hladno pivo was named a "homofriend" of the year.