[2] She is also the lead vocalist for Plaza Francia Orchestra where she performs with Eduardo Makaroff and Christoph H. Müller, formerly of Gotan Project.

In 1976, she met the Argentine dancer and choreographer Marcia Moretto with whom she studied and also performed in various venues in Paris.

In 1979, she met Fred Chichin with whom she founded and co-led the music group Les Rita Mitsouko.

Post the release of the 2010 Gotan Project album Tango 3.0, Ringer teamed up with members Eduardo Makaroff and Christoph H. Müller to create Plaza Francia, now known as Plaza Francia Orchestra for their 7 April 2014 release A New Tango Song Book.

[4][5] The album came with critical acclaim and a commercial success in France also charting in Belgium and she continues to perform with them to this day.