7. 'This Is Spinal Tap'
Not of lot of things went right for Black Sabbath when they hit the road in support of their 1983 LP Born Again. They were on their third lead singer in four years and ticket sales were pretty dismal. The second song on the album is titled "Stonehenge," so they commissioned a model of the monument for the show. The finished product was so massive that it wouldn't fit on most stages. Bassist Geezer Butler relayed his misery to the screenwriters of This Is Spinal Tap, who were writing a groundbreaking mockumentary about a British band going through a similar rough patch. Directed by Ron Reiner, the movie found a huge audience, but hit a little too close to home for many rock stars, though we've never heard of any group getting second billing to a puppet show.