Teach in was a dutch band. The band was founded in 1969 and parted in 1980. Throughout this time there were several changes in line-up. Teach in released their first album “Roll along”, in 1974. In 1974 the band had three top 15 hits in the Netherlands. They won the Eurovision song Contest 1975,which resulted in a chart entry in nearly every European country, as well as a #22 placing in the US on the Easy Listening chart. Getty Kaspers left the group in early 1976, and was replaced by Betty Vermeulen & Marianne Wolsink. Teach-In toured Europe for the next two years, but the success took its toll when the band split up in 1978. In 1979 Ruud Nijhuis and Koos Versteeg reformed the band, this time with two new female singers. After three more hits the group split up.