What group has not participated in the Eurovision Song Contest?

Explanation

Nazareth is a Scottish rock band which had its glory in the 1970s. The band had a string of hits, including the song "Love Hurts". maNga, one of the most internationally renowned and succesfull Turkish bands, represented the country in 2010. The Latvian rock/pop group Brainstorm participated in the year 2000 and came third, whilst Katrina and the Waves participated and won for the UK in 1997 with the song "Love Shine a Light".