Directly after the release of Toto IV, bassist David Hungate left the band. Hungate, who had relocated to Nashville in 1980 to pursue a session/production career, felt that the fame surrounding Toto IV would prevent him from spending time with his family. A third Porcaro brother, Mike Porcaro, who had performed cello on a track from Toto IV, replaced Hungate on bass, while lead singer Bobby Kimball spent the early part of 1983 facing prosecution for drug-related charges. Kimball was ordered to stand trial, but pled not guilty. The charges were dismissed on May 28 of that year. However, Kimball was fired from the band in 1984 due to difficulty recording vocals and numerous missed sessions. Later that year, Toto composed most of the music for the soundtrack to the film Dune.
