On May 7, 2015, Karen debuted Suitcase in Berlin: Songs of Brecht and the Poet Troubadours at the Irondale Center in her hometown of Brooklyn, NY. In the program she wove together the story song composers she loves most including Jaques Brel, Nick Cave, Leonard Cohen, Tom Waits and Noel Coward.

A few days later she was featured with a mini-set she called Gloomy Sunday at the Lower East Side Arts Festival.

On October 14, 2015 at the New York Cabaret Convention, Karen performed a re-imagined bi-lingual version of Lili Marleen with Sean Harkness on guitar. It brought the house down.