Sacred Heart was the final Dio album to include original guitarist
Vivian Campbell, who was fired midway through the album's tour. Campbell went on to join
Whitesnake and later
Def Leppard. A serious rift developed between the guitarist and vocalist
Ronnie James Dio during the recording of
Sacred Heart, with Dio stating in an interview "...for me, (Campbell) wasn't even there for this record." When the band was formed, Dio had made an arrangement with his new band which saw them paid very little, but they were promised a larger piece of the pie beginning with their third album, which ended up being
Sacred Heart. Campbell has maintained over the years that Dio failed to follow through on that promise, and his unhappiness with the situation drove a wedge between the two. Dio had recently separated from his wife and manager Wendy Dio, and Campbell has stated that this personal turmoil resulted in the vocalist's demeanor in the studio becoming "really, really dark" during the recording of
Sacred Heart. As a result, the musicians were uncomfortable in the studio and would typically leave after recording their parts, and the band began to fall apart. Clocking in at 38 minutes,
Sacred Heart is the band's shortest album. ==Tour==