This is one of the prettiest Eurovision entries I've heard before:
Bianca, Patricia and Stella Maessen, three sisters from Harderwijk, did a lot of session work (a.o with Dusty Springfield and Rika Zarai), performed regularly at nightclubs across the country and participated in 1970 in the Eurovision Song Contest. In 1973, they left for Belgium,where they formed a new group, Dream Express, with Luc Smets (ex-Pebbles). Stella released a solo single under the name Stella Mason. In 1977, the group participated for the second time in Eurovision, this time representing Belgium. Two years later, the Dream Express split up. In the meantime, Bianca got married to Luc, and Patricia went on to join Passenger. Luc, Stella and Bianca formed L.B.S. in 1979. — Nederpop Encyclopedia)
'Waterman' only came 7th that year. Bah!
Coming soon: a video of this performance (hopefully!).