Answer
Yes, Elio Di Rupo became Belgium's first socialist Prime Minister since Edmond Leburton. He served from 2011 to 2014, leading a coalition government that included the Socialist Party, the Flemish Christian Democrats, and the Reformist Movement. Di Rupo's tenure was marked by economic challenges, including the ongoing European debt crisis, but he is also credited with legalizing same-sex marriage in Belgium in 2012.