Question: What was written and performed by Viggo Sommer, Carsten Knudsen, and Uffe Rørbæk Madsen that resulted in invented phrases from the series to enter popular culture?
Sentence (from "De Nattergale"): The group consists of Viggo Sommer, Carsten Knudsen and Uffe Rørbæk Madsen.
Relevant evidence: Yes