 Complete the following phrase:  Ragnheiður Gröndal or Ragga Gröndal born 1984 is an Icelandic singer. She was described as Icelands best-selling artist in 2006, and was named Icelandic Singer of the Year that same year. In 2007, she was a finalist in Söngvakeppni Sjónvarpsins; a competition looking for an artist to represent Iceland at the 