There is more than one artist with this name: 1) A German Britpop band from Flensburg active from 1997 to 2001. In 2000 the band was awarded with the Bambi. 2) A Czech pub-rock band which should be referred to as "Echt!":
Součástí názvu české kapely je vykřičník, měla by tedy být uváděna v podobě "Echt!"
2) In Prague, in the 1970's one of the main underground venues was the pub Klamovka where many musicians and artists would meet. The band Echt! was formed from some of these musicians in 1988 performing in the new Prague „pub-rock“ style, attracting successively larger audiences.

Read more about Echt on Last.fm.