Question: Facts: - instrument: vocals , guitar , harmonica , piano , drums - death place: stockholm , sweden - years active: 1960 -- 2015 - caption: on robban + 7 bitar broberg '' -lrb- 1967 -rrb- . the cover of the lp '' 7 bitar - birth name: robert karl oskar broberg - death date: 21 july 2015 - genre: rock , pop - alias: robban broberg , zero - birth date: 2 july 1940 - background: solo_singer - image: robban.jpg - birth place: solna , sweden - occupation: musician , singer , songwriter , artist Based on these bullet points, write a short biography describing the life of robert broberg .
Answer:
robert zero karl oskar broberg -lrb- 2 july 1940 -- 21 july 2015 -rrb- was a swedish singer , composer and artist .as an artist , he used various names : robban or robban broberg -lrb- 1957 -- 1968 -rrb- , robert karl-oskar broberg -lrb- 1968 -- 1974 -rrb- , zero -lrb- 1974 -- 1982 -rrb- and starting 1982 the present name robert broberg .