Back in Vienna, she landed a huge hit with „Wie a Glock’n“ sung in Viennese dialect. With this one song, Marianne revived the almost forgotten genre of the “Wienerlied” (Viennese song), which was exclusively sung in dialect. It is no exaggeration when people call her the mother of Austropop.
She is generally regarded as the forerunner of well-known performers such as Wolfgang Ambros, Ludwig Hirsch, Rainhard Fendrich, Falco and many others.
Her success on stage, for example at the Theater an der Wien, Theater in der Josefstadt and the Raimundtheater, as well as on-screen, earned her many awards for her creative work. She also began to support Austrian Jazz.
In 2004, she founded the MM Musikwerkstatt, to provide young jazz musicians with a platform. Each May, the MM Jazzfestival in St. Pölten attracts the best musicians from Austria’s Jazz scene.