Who you gonna call? 'my lawyer!'

When Huey Lewis first heard Ray Parker Jr’s No.1 hit Ghostbusters in 1984 (from the movie of the same name), it struck him that the song sounded uncannily like his hit 'I Want a New Drug' from the previous year.

Lewis sued Parker for copyright infringement and settled in 1995 for an undisclosed sum. Unfortunately, despite agreeing not to discuss the case in public, he proceeded to insult Parker on VH1. Result: another lawsuit.