From 1989 to 1991 Brennicke attended the Zinner Studio (today the International School for Acting and Acting). In 1992 she formed the singing duo Charade with Jennifer Böttcher, which was produced by Stefan Zauner and Aron Strobel of the band Münchener Freiheit. The singles All of You and The Colour of Your Eyes reached number 67 and 60 of the German charts.