The German national final will take place on 13th March, with 8 acts competing, and the biggest name in this selection is probably Unheilig. They have released a teaser of one of their songs - which is entitled Als wär´s das erste Mal. These guys are very popular and are already big contenders for victory.
Each act will perform two songs, and these songs will hopefully be released soon. Ocena has also released a snippet of one of her songs. You can listen to that here.