On Tuesday the Eurovision week officially began with the first semi-final. Nineteen countries took part of the first show, out of which 10 got through the the Grand Final taking place on Saturday night. Take a look and listen to the songs that will be joining last year's finner, Portugal, and the big five - UK, France, Germany, Italy, and Spain.
Semi-finals were introduced back in 2005 due to an increasing number of countries participating in the contest. Initially, the contest only had one semi-final, in order to make the grand final shorter, more entertaining, and competitive. In 2008, the second-semi final was added where 10 countries from each would get through to the Grand Final.