Complex sentence: Dr. West's Medicine Show and Junk Band was a psychedelic rock band which is known for producing Norman Greenbaum and a minor hit called "The Eggplant that Ate Chicago".
Split into simpler sentences: Dr. West's Medicine Show and Junk Band was a psychedelic rock band. They were known best for producing both Norman Greenbaum and the hit "The Eggplant that Ate Chicago".