Hazlehurst also co-wrote the S Club 7 hit, Reach.
"Soul Man," their biggest hit, reached number two on the pop chart in 1967.
Zootropolis proved a significant word-of-mouth hit, reaching £23.6m so far.
They made only two albums and their biggest hit reached No 50.
The song became a gigantic hit, reaching No 1 in 22 countries, including the UK.
The single gave Funkadelic their only British hit, reaching No 9 in December 1978.
The app was a huge hit, reaching No. 42 on the best-selling list last year, according to iTunes.
The song became a worldwide hit, reaching No1 in five countries, but Ke$ha never saw a cent.
The resulting 17-minute single contains more than 20 simulated orgasms and became an international hit, reaching No. 2 on the American pop chart.
Last year, Hit reached an accord with its lenders to push debt maturities to next year, in exchange for higher interest rates.
The single sold over 2m copies in the US alone and became an international hit, reaching No 12 in Britain early in 1973.
