Stefanie Hertel has three siblings. They are Katrin, Andreas and Jorg Hertel.
They rose to fame after their sister Stefani became a singer however, there isn’t much information about them on the internet as they love to keep their lives away from the media.
Hertel has won many prizes as a performer. Her career began at the age of 4 when she appeared with her father Eberhard Hertel. She was six when she made her television debut with a song about a teddy bear.
In 1992, Hertel won the Grand Prix der Volksmusik, which trumpeter Stefan Mross had won in 1989 with Heimwehmelodie.
In 1995, Hertel competed together with Stefan Mross in the Grand Prix der Volksmusik with the song Ein Lied für jeden Sonnenstrahl, finishing second.