There is more than one artist with this name:
1) Philippe Katerine (known as Katerine for his artistic work) is a French singer and composer, who published eight records since the beginning of his career in 1991.
He was born in 1968.
2) Katerine Avgoustakis is a Belgian singer and was the winner of the 2005 Belgian Star Academy, similar to American Idol in the United States. She was born on September 16, 1983, to a Greek father and a Belgian mother.