Complex sentence: Jedward won the competition, with their song "Waterline" earning them the chance to represent Ireland at the Eurovision Song Contest 2012, making them the first act ever to represent Ireland two years in a row.
Split into simpler sentences: Jedward won the competition, with their song "Waterline" earning them the chance to represent Ireland at the Eurovision Song Contest 2012. Jedward now have become the first act ever to represent Ireland two years in a row.