Johann won with F.C. Barcelona UEFA Cup Winners' Cup and was nicknamed: "Goleador" by the spanish fans.
In the Austrian football national team, Johann played alongside with Herbert Prohaska, and his most unforgetable goal was against Germany in the 1978. World Cup.
After he retired playing football, he became a national football coach of Austria.
In the eighties, he started a singing career and was a radio moderator as "Der Nachtfalke" in the nineties.
He is still very popular in Austria for his viennese jokes and expressions.