Robert Zero Karl Oskar Broberg (2 July 1940 – 21 July 2015) was a Swedish singer, composer and artist. As an artist, he used various names: Robban or Robban Broberg (1957–1968), Robert Karl-Oskar Broberg (1968–1974), Zero (1974–1982) and starting 1982 the present name Robert Broberg.
When Broberg studied at Konstfack in 1957, he claimed that he had a skiffle group and later he was invited to play with his skiffle group at the dance restaurant Lorry in Sundbyberg. Then he quickly collected friends and they started rehearsing. Later he started writing own songs.
In 1989 he received "Karamelodiktstipendiet". He died from Parkinson's disease on 21 July 2015 at the age of 75.
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