Question: Hanging Gardens collaborations from which artist that performed under  the name "Senior", Jeppe was the lead vocalist of the pop duo Junior Senior?
Sentence (from "Hanging Gardens (Classixx album)"): In making the record, Classixx went for a record with "hooky melod[ies]," "some nice chords," and a positive feel-good tone while still having depth not common in dance music.
Relevant evidence: No