[Yello] Xmass Eve with Carlos

A long long time ago when I was still young, I was working temporarely in germany. I always listened to Radio FFN. It was at this station where I listened to an interview with Carlos Peron. He told that while he was working in his studio, Dieter Meier came in, and told Peron that he felt like singing. Carlos, las mich am micro... ich muss jetz singen!! Carlos then made Dieter sing on a track that ended up on one of his CD's. And it has something to do with Xmass Eve. Where ever I go, I can't find CD's of Peron. So my question to get rid of another mind bothering item: Does any one know about this track and it's correct title? Rene