I don't know that much about Ulla Pia,she represented Denmark in the 1966 Eurovison songcontest with this song that translates as "stop,while the going is good" (backed by 2 dancers who did the
stop-dance) and had several other hits in the sixties in her home country.She also sang in German and appeared in 3 Danish 60's movies
Stop,mens legen er go (in Danish)
expired