Allen was one of the first evangelist to originate a national television ministry, broadcasting prophecies, unverified healings, and "claimed to communicate with the demon world" over the airwaves. He died from causes related to alcoholism. There is more interesting reading on Allen's wikipedia page.
Allen knew how to entice folks to buy records. Albums were frequently pressed on color vinyl, Titles could be lurid and and images, garish. Copy was also tended to be sensational. But, overall Allen covers have a strong graphic appeal
The music could be great fun and full of energy.