In May 1990, Metallica was riding high on the success of their legendary album *...And Justice for All*, which had dropped in 1988. This was an era where the band had solidified their presence in the hard rock scene, blending speed metal with intricate song structures and thought-provoking lyrics. Their live performance in Leiden, part of the 1990 tour, showcased their raw energy and musicianship that fans adored. Notably, this concert came just months before the release of their self-titled album, commonly known as the *Black Album* (released in 1991), which would ultimately skyrocket them to mainstream fame. It's fascinating to think about how this period was a bridging point for Metallica—from the complex compositions of their earlier works to the more accessible sound that would dominate their next project. The presence of acts like Dio and Bonham opening for them indicates just how influential Metallica had become, commanding respect from not only fans but fellow artists too.