OU812 Tour was a concert tour by hard rock band Van Halen . It was the second tour to include dates in Japan , and was the second with Sammy Hagar as vocalist ( who had settled into the role more by this point ) . It followed the Monsters of Rock Tour 1988 , which had formed the first part of the promotion for the '' OU812 '' album
Monsters of Rock Tour 1988
Monsters of Rock Tour 1988
OU812 Tour