What Came Next...Dio "Sacred Heart"

Dio's first two albums, Holy Diver and The Last in Line, were hard rock classics. So, why change things up? If anything, Sacred Heart was a bit poppier, but largely it sounded like the first two, which was both a blessing and a curse. It would be the last album with Vivian Campbell on guitar, signaling that the band's sound would change a bit for the following record, but not radically.