Here is the song that made him famous.
He complains about the thin women in austria and prefers a woman that has "well - bust and a nice behind" - so he sings about that he could never date a woman that is thin as a stick :-) (lol)
http://www.youtube.com/watch?v=SHwDkpewYpo (can you see that link? Is it restricted or not? Its the official one)
http://youtu.be/VxAAezhfwfI
He is an amazing artist, was also in tibet and africa, and collected "Volksmusik" from many cultures, to reinterpret it in a non kitchy way.
Here is a solo project from "Zabine" his former lead singer. I think both have amazing voices. Very strong.
http://www.youtube.com/watch?v=Xl9X9MpM7yc