His AP obituary contains some interesting trivia. The piano on "Monster Mash" was played by Leon Russell, who was 20 years old at the time. Also the song was turned down by four record labels before it was finally released.
Pickett managed to build a touring career around "Monster Mash" until the end:
He continued performing through his final gig in November. He remained in demand for Halloween performances, including a memorable 1973 show where his bus broke down outside Frankenstein, Missouri.The obit did not mention whether Pickett had been sharing that bus with Edgar Winter.